Perhaps you should try some spelling variations:
thanh luan » tranh luan, thanh xuan, thanh tuan
nhung cong » dung cong, thong cong, hang cong
lieu tinh » trieu tinh, diep tinh, bien tinh
van nhung » van nhuong, va nhung, van hung
tay tieng » tap tieng, ta tieng, day tieng
va tieng » va tinh, tu tieng, va thong
ho lieu » so lieu, co lieu, ho kieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho lieu tinh - thanh luan van nhung cong ((tay tieng) or (va tieng)) tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho lieu tinh - thanh luan van nhung cong ((tay tieng) OR (va tieng)) tap.
• Adding a wildcard symbol may retrieve word variants: ho lieu tinh - thanh luan van nhung cong ((tay tieng) or (va tieng)) tap*.