Perhaps you should try some spelling variations:
thoi xuan » thi xuan, tho xuan, thoi xua
nhung doi » nhung don, nhung loi, nhung noi
xuan duc » tran duc, phan duc, xuan huy
doi quan » moi quan, do quan, noi quan
quan van » luan van, quan va, quan luan
que van » qua van, quy van, quyet van
duc lap » doc lap, duc lai, duc lam

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( nhung bai que van. thoi xuan duc lap ) or ( nhung doi quan van. thoi xuan duc lap ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( nhung bai que van. thoi xuan duc lap ) OR ( nhung doi quan van. thoi xuan duc lap )).
• Adding a wildcard symbol may retrieve word variants: (( nhung bai que van. thoi xuan duc lap ) or ( nhung doi quan van. thoi xuan duc lap ))*.