Perhaps you should try some spelling variations:
"nhung loi que van. thoi nguyen cua lap" » "nhung loi que van. thai nguyen cua lap", "nhung loi que van. thi nguyen cua lap", "nhung loi que van. tuoi nguyen cua lap", "nhung loi que van. thoi nguyen cuu lap", "nhung loi que van. thoi nguyen xuan lap", "nhung loi que van. thoi nguyen tuan lap", "nhung bai que van. thoi nguyen cua lap", "nhung bi que van. thoi nguyen cua lap", "nhung gi que van. thoi nguyen cua lap", "nhung loi qua van. thoi nguyen cua lap", "nhung loi quy van. thoi nguyen cua lap", "nhung loi quyet van. thoi nguyen cua lap", "nhung loi que van. thoi nguyen chua lap", "nhung loi que van. thoi nguyen cua tap", "nhung loi que van. thoi nguyen cua lam"
"phung thi xuan van. thoi gian cua lap" » "phung thi xa van. thoi gian cua lap", "phung thi lan van. thoi gian cua lap", "phung thi luan van. thoi gian cua lap", "phung thi quan van. thoi gian cua lap", "phung thi xuan can. thoi gian cua lap", "phung thi xuan van. thoi gian xu lap", "phung thi xuan van. thoi ban cua lap", "phung thi xuan van. thoi gian chua lap", "phung thi xuan van. thoi gian cua tap", "phung thi xuan van. thoi gian cua lam"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("nhung loi que van. thoi nguyen cua lap") or ("phung thi xuan van. thoi gian cua lap"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("nhung loi que van. thoi nguyen cua lap") OR ("phung thi xuan van. thoi gian cua lap")).
• Removing quotes may allow a broader search: (( nhung loi que van. thoi nguyen cua lap ) or ( phung thi xuan van. thoi gian cua lap )).
• Adding a wildcard symbol may retrieve word variants: (("nhung loi que van. thoi nguyen cua lap") or ("phung thi xuan van. thoi gian cua lap"))*.