Perhaps you should try some spelling variations:
hieu manh » chieu xanh, hieu nganh, dieu hanh
tranh qua » tranh cua, thanh qua, trinh qua
dung cong » dung trong
toc hieu » toc thieu, doc hieu, hoc thieu
qua dung » quang dung, su dung, qua song
cong dan » cong san, cong tan, huong dan
than cap » thanh lap, thanh cac, than cua
khan cap » khan ap, khoan cam, phan cac
phan dau » phan tu, hang dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc hieu manh - canh tranh qua dung cong dan ((((than cap) or (khan cap))) or (phan dau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc hieu manh - canh tranh qua dung cong dan ((((than cap) OR (khan cap))) OR (phan dau)).
• Adding a wildcard symbol may retrieve word variants: toc hieu manh - canh tranh qua dung cong dan ((((than cap) or (khan cap))) or (phan dau))*.