Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hieu manh » chieu xanh, hieu nganh, dieu hanh
trung cua » truong cua, trung tuan, trung cap
hoc hieu » hoc thieu, hoc hien, doc hieu
tang cua » mang cua, hang cua, tang luan
san tuan » van tuan, san luan, tran tuan
san quan » van quan, ban quan, dan 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 ((tang cua) or (trung cua)) nhung cong ((san tuan) or (san quan)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu manh - hanh ((tang cua) OR (trung cua)) nhung cong ((san tuan) OR (san quan)) cao.
• Adding a wildcard symbol may retrieve word variants: hoc hieu manh - hanh ((tang cua) or (trung cua)) nhung cong ((san tuan) or (san quan)) cao*.