Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
luong cong » dung cong, trong cong, cong cong
hanh luan » khanh luan, hang luan, hanh luat
van luong » van duong, van cuong, nang luong
tac tieng » tap tieng, tay tieng, toan tieng
ho chieu » theo chieu, hoc thieu, doi chieu
ta tieng » tap tieng, tu tieng, va tieng

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

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