Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
doi chieu » doc hieu, ho chieu, mot chieu
trinh van » trinh han, trinh quan, trinh toan
duong van » duong va, luong va, dang van
van dung » van dong, xay dung, tin dung
toan cao » toan ban, toan tap
doi chi » doi khi

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 (doi chi)) xanh - hanh trinh van dung ((duong manh) OR (duong van)) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (doi chi)) xanh - hanh trinh van dung ((duong manh) OR (duong van)) toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doi chieu) or (doi chi)) xanh - hanh trinh van dung ((duong manh) OR (duong van)) toan cao".
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) or (doi chi)) xanh - hanh trinh van dung ((duong manh) OR (duong van)) toan cao*.