Perhaps you should try some spelling variations:
theo hieu » theo chieu, theo tieu, thien hieu
hieu lang » chieu sang, hieu quang, nhieu tang
hanh manh » hanh mang, lanh manh, hoang manh
cua nhung » va nhung
manh cua » doanh cua, ban cua
cong tan » cong tac, cong thanh, cong ty
cong san » cong tac
phan cau » phan dau, phan tu, phan lap
phan cac » nhan cach, phan dau, phan lap

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