Perhaps you should try some spelling variations:
hanh trinh » canh tranh
theo chieu » theo tieu, ho chieu, thi chieu
theo chu » cho chu, chao chu, theo yeu
quan ban » quang ban, qua ban, quan van
ban cong » bang cong, van cong, phan cong
cong tan » cong tac, cong san, cong thanh
tran ban » tranh ban, tran van, toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo chieu) or (theo chu)) xanh - ((hanh trinh) OR (hanh chinh)) quan ban cong tan tran ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (theo chu)) xanh - ((hanh trinh) OR (hanh chinh)) quan ban cong tan tran ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chieu) or (theo chu)) xanh - ((hanh trinh) OR (hanh chinh)) quan ban cong tan tran ban".
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) or (theo chu)) xanh - ((hanh trinh) OR (hanh chinh)) quan ban cong tan tran ban*.