Perhaps you should try some spelling variations:
theo hieu » theo chieu, theo tieu, thien hieu
hieu lang » chieu sang, hieu quang, nhieu tang
hanh dung » thanh dung, anh dung, hanh dong
hang cong » dang cong, bang cong, thanh cong
hang nong » thang long, han tong
thanh cac » hanh cac, thanh bac, thanh ca
than cap » khan cap, thanh lap, 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: theo hieu lang - hanh dung luan ((hang cong) or (hang nong)) ban ((than cap) OR (thanh cac))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo hieu lang - hanh dung luan ((hang cong) OR (hang nong)) ban ((than cap) OR (thanh cac)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo hieu lang - hanh dung luan ((hang cong) or (hang nong)) ban ((than cap) OR (thanh cac))".
• Adding a wildcard symbol may retrieve word variants: theo hieu lang - hanh dung luan ((hang cong) or (hang nong)) ban ((than cap) OR (thanh cac))*.