Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, nhung don
hieu manh » chieu xanh, hieu nganh, dieu hanh
hang cong » dang cong, hang nong, bang cong
hoc hieu » hoc thieu, hoc hien, doc hieu
manh cua » doanh cua
dan than » dan chan, ban than, van than
than ban » thanh ban, toan ban, than man
ban cua » ban quan

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hieu manh - hanh ((manh cua) or (ban cua)) ((nhung cong) or (hang cong)) dan than ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu manh - hanh ((manh cua) OR (ban cua)) ((nhung cong) OR (hang cong)) dan than ban.
• Adding a wildcard symbol may retrieve word variants: hoc hieu manh - hanh ((manh cua) or (ban cua)) ((nhung cong) or (hang cong)) dan than ban*.