Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
doi chieu » doc hieu, doi chi, ho chieu
trinh qua » trinh quan, trinh cua, trinh quang
cong cong » cong dong, trong cong, dung cong
qua cong » cua cong, qua song, va cong
van tham » van thanh, van tuan, van chat
van tam » van tai, van tan, van lam

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

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