Perhaps you should try some spelling variations:
thien thanh » tien thanh, thi thanh, hien hanh
lieu tinh » trieu tinh, diep tinh, bien tinh
tang luan » dung luan
cong manh » cong danh, duong manh, cong thanh
manh toan » thanh toan, anh tuan, tinh toan
anh tang » anh bang, anh dang, anh nang
van cong » van dong, van phong, phan cong
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((lieu tinh) or (thien thanh)) - anh tang luan van cong manh toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((lieu tinh) OR (thien thanh)) - anh tang luan van cong manh toan tap*.