Perhaps you should try some spelling variations:
thanh cham » thanh pham, thanh cha, hanh cham
tranh cua » doanh cua, manh cua
thanh cao » thanh cac, thanh thao, thanh chau
hien anh » hien hanh, thien anh, dien anh
ban cong » bang cong, van cong, phan cong
cong san » cong tac
thanh ca » thanh cha, thanh cac, thanh ha

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hien anh - canh tranh cua ban cong san ((((thanh cao) OR (thanh cham))) or (thanh ca))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien anh - canh tranh cua ban cong san ((((thanh cao) OR (thanh cham))) OR (thanh ca))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien anh - canh tranh cua ban cong san ((((thanh cao) OR (thanh cham))) or (thanh ca))*".