Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
mot chieu » ho chieu
doi chieu » doc hieu, doi chi, ho chieu
nang cong » dang cong, bang cong, hang cong
trinh va » trinh van, trinh vat, trinh ve
van toan » van tuan, van tan, van thanh
toan tap » 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: ((mot chieu) or (doi chieu)) xanh - hanh trinh va ((nang cong) OR (nang song)) van toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((mot chieu) OR (doi chieu)) xanh - hanh trinh va ((nang cong) OR (nang song)) van toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((mot chieu) or (doi chieu)) xanh - hanh trinh va ((nang cong) OR (nang song)) van toan tap".
• Adding a wildcard symbol may retrieve word variants: ((mot chieu) or (doi chieu)) xanh - hanh trinh va ((nang cong) OR (nang song)) van toan tap*.