Perhaps you should try some spelling variations:
thieu manh » hieu manh, tien manh, trieu minh
hoc thieu » toc thieu, hoc hien
tranh qua » tranh cua, thanh qua, trinh qua
qua dung » quang dung, su dung, qua song
than cao » toan cao, thai cao, than cap
cong tu » dong tu, cong ti, cong thuc
cong cu » chung cu

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thieu manh - canh tranh qua dung ((((cong tu) or (cong ty))) or (cong cu)) than cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu manh - canh tranh qua dung ((((cong tu) OR (cong ty))) OR (cong cu)) than cao.
• Adding a wildcard symbol may retrieve word variants: hoc thieu manh - canh tranh qua dung ((((cong tu) or (cong ty))) or (cong cu)) than cao*.