Perhaps you should try some spelling variations:
hieu manh » chieu xanh, hieu nganh, dieu hanh
dung cong » dung trong
toc hieu » toc thieu, doc hieu, hoc thieu
trinh tu » trinh ky
trinh do » trinh ky
cong dan » cong san, cong tan, huong dan
than cap » khan cap, thanh lap, thanh cac
phan cau » phan dau, phan cac, phan tu

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 ((trinh tu) or (trinh do)) dung cong dan ((than cap) or (phan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc hieu manh - canh ((trinh tu) OR (trinh do)) dung cong dan ((than cap) OR (phan cau)).
• Adding a wildcard symbol may retrieve word variants: toc hieu manh - canh ((trinh tu) or (trinh do)) dung cong dan ((than cap) or (phan cau))*.