Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
theo chau » theo chieu, theo phap, theo cap
luan vang » luan nang, luan tang, luan va
theo chu » theo chieu, cho chu, chao chu
cong san » cong tac
san than » sang than, san thanh, ban than
than cap » khan cap, thanh lap, thanh cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo chau) OR (theo chu)) tinh - hanh trinh ((luan vang) or (luan van)) cong san than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chau) OR (theo chu)) tinh - hanh trinh ((luan vang) OR (luan van)) cong san than cap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chau) OR (theo chu)) tinh - hanh trinh ((luan vang) or (luan van)) cong san than cap".
• Adding a wildcard symbol may retrieve word variants: ((theo chau) OR (theo chu)) tinh - hanh trinh ((luan vang) or (luan van)) cong san than cap*.