Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
mot chieu » doi chieu, ho chieu
tong cong » trong cong, cong cong, dung cong
theo chu » theo chieu, cho chu, chao chu
trinh va » trinh van, trinh vat, trinh ve
van toan » van tuan, van tan, van thanh
van quan » van ban
va tong » va thong, va tuong, va trong

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 (theo chu)) xanh - hanh trinh va tong cong ((van toan) or (van quan)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((mot chieu) OR (theo chu)) xanh - hanh trinh va tong cong ((van toan) OR (van quan)) cao.
• Adding a wildcard symbol may retrieve word variants: ((mot chieu) or (theo chu)) xanh - hanh trinh va tong cong ((van toan) or (van quan)) cao*.