Perhaps you should try some spelling variations:
tuong cong » truong cong, trong cong, tong cong
hoc thieu » toc thieu, hoc hien
hang hang » nang hang, cang thang, hung thang
ho chieu » theo chieu, doi chieu, mot chieu
va tuong » va thuong, va thong, xa truong
cong tan » cong tac, cong san, cong thanh
tran cau » tran chau, ran cau, tra cau
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: ((ho chieu) or (hoc thieu)) tinh - hang hang va tuong cong tan ((tran cau) or (toan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (hoc thieu)) tinh - hang hang va tuong cong tan ((tran cau) OR (toan cau)).
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (hoc thieu)) tinh - hang hang va tuong cong tan ((tran cau) or (toan cau))*.