Perhaps you should try some spelling variations:
quang thanh » quan thanh, hoang thanh, muong thanh
theo chieu » theo tieu, ho chieu, theo chu
huong manh » duong manh, hung manh, luong manh
thiet yeu » thiet ke, theo yeu
quan hang » quan hoang, quan lang, quan hanh
manh toan » thanh toan, anh tuan, tinh toan
hanh ban » thanh ban, hang ban, hanh san
toan ban » van ban

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 (thiet yeu)) tinh - hanh ban ((quan hang) or (quang thanh)) huong manh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (thiet yeu)) tinh - hanh ban ((quan hang) OR (quang thanh)) huong manh toan ban.
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) or (thiet yeu)) tinh - hanh ban ((quan hang) or (quang thanh)) huong manh toan ban*.