Perhaps you should try some spelling variations:
chieu tach » chiet tach, chieu sach, chieu tinh
dung cong » dung trong
cong manh » cong danh, duong manh, cong thanh
manh toan » thanh toan, anh tuan, tinh toan
anh tran » anh tuan, anh toan, anh trac
tran van » luan van
van dung » van dong, xay dung, tin dung
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chieu tach) or (chiu trach)) - anh tran van dung cong manh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu tach) OR (chiu trach)) - anh tran van dung cong manh toan cau.
• Adding a wildcard symbol may retrieve word variants: theo ((chieu tach) or (chiu trach)) - anh tran van dung cong manh toan cau*.