Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
nhung cong » dung cong, thong cong, nhung don
mot chieu » doi chieu, ho chieu
khach dan » khach san, khach hang, nhac dan
hang cong » dang cong, hang nong, bang cong
manh toan » thanh toan, anh tuan, tinh toan
toan cao » toan ban, toan tap
dan va » doan va, dan ca, ban va

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((mot chieu) OR (theo chieu)) sang - khach dan va ((nhung cong) OR (hang cong)) manh toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((mot chieu) or (theo chieu)) sang - khach dan va ((nhung cong) OR (hang cong)) manh toan cao~".
• Adding a wildcard symbol may retrieve word variants: ((mot chieu) or (theo chieu)) sang - khach dan va ((nhung cong) OR (hang cong)) manh toan cao*.