Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hieu manh » chieu xanh, hieu nganh, dieu hanh
tranh cua » doanh cua, manh cua
trung cua » truong cua, trung tuan, trung cap
hoc hieu » hoc thieu, hoc hien, doc hieu
san tuan » van tuan, san quan, tran tuan
san luan » dan luan, tang luan, hang luan

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 ((tranh cua) or (trung cua)) nhung cong ((san tuan) OR (san luan)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu manh - hanh ((tranh cua) OR (trung cua)) nhung cong ((san tuan) OR (san luan)) cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hieu manh - hanh ((tranh cua) or (trung cua)) nhung cong ((san tuan) OR (san luan)) cao".
• Adding a wildcard symbol may retrieve word variants: hoc hieu manh - hanh ((tranh cua) or (trung cua)) nhung cong ((san tuan) OR (san luan)) cao*.