Perhaps you should try some spelling variations:
hieu manh » chieu xanh, hieu nganh, dieu hanh
tranh cua » doanh cua, manh cua
cua thong » cua thuong, cua khong, cua tong
thanh lap » thanh san, phan lap, thanh hai
toc hieu » toc thieu, doc hieu, hoc thieu
cong dan » cong san, cong tan, cong dong
than cap » khan cap, thanh cac, than cua

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 tranh cua thong ((cong dan) or (huong dan)) ((than cap) OR (thanh lap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc hieu manh - canh tranh cua thong ((cong dan) OR (huong dan)) ((than cap) OR (thanh lap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc hieu manh - canh tranh cua thong ((cong dan) or (huong dan)) ((than cap) OR (thanh lap))".
• Adding a wildcard symbol may retrieve word variants: toc hieu manh - canh tranh cua thong ((cong dan) or (huong dan)) ((than cap) OR (thanh lap))*.