Perhaps you should try some spelling variations:
thi chien » thi hien, thi thien, thien chien
duong van » duong va, luong va, dang van
dung cong » dung trong
ho chieu » theo chieu, hoc thieu, doi chieu
dung van » dung va, dang van, dung von
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((thi chien) or (ho chieu)) xanh - thanh ((dung van) OR (duong van)) dung cong tan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thi chien) OR (ho chieu)) xanh - thanh ((dung van) OR (duong van)) dung cong tan toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thi chien) or (ho chieu)) xanh - thanh ((dung van) OR (duong van)) dung cong tan toan cau".
• Adding a wildcard symbol may retrieve word variants: ((thi chien) or (ho chieu)) xanh - thanh ((dung van) OR (duong van)) dung cong tan toan cau*.