Perhaps you should try some spelling variations:
cang thang » cong thanh, dang thanh
theo chieu » theo tieu, ho chieu, thi chieu
thanh toan » thanh hoa, thanh san, tinh toan
dung cong » dung trong
manh toan » anh tuan, tinh toan
theo chu » cho chu, chao chu, theo yeu
thang va » hang va, trang va, thong va
va dung » van dung, va duong, vat dung

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

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