Perhaps you should try some spelling variations:
thanh trang » thanh trung, hanh trang, thanh tran
thanh thang » nhanh thang, thanh thanh, thanh hang
phuong cong » phuong dong, phong cong, phung cong
theo chieu » theo tieu, theo chu, thi chieu
va phuong » va thuong, cac phuong
ho chieu » hoc thieu, doi chieu, mot chieu
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: ((ho chieu) OR (theo chieu)) xanh - ((thanh trang) or (thanh thang)) va phuong cong tan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (theo chieu)) xanh - ((thanh trang) OR (thanh thang)) va phuong cong tan toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) OR (theo chieu)) xanh - ((thanh trang) or (thanh thang)) va phuong cong tan toan cau".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) OR (theo chieu)) xanh - ((thanh trang) or (thanh thang)) va phuong cong tan toan cau*.