Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, thi chieu
canh trinh » canh tranh, hanh trinh, canh tinh
cong vang » cong lang, cong quang, cong ngang
vang phan » van phan, nang phan, quang phan
theo chu » cho chu, chao chu, theo yeu
phan cac » nhan cach, phan dau, phan lap
va hang » van hang, va nang, va lang
da nang » cam nang, kha nang, cao nang

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: ((theo chu) OR (theo chieu)) manh - canh trinh ((va hang) OR (da nang)) cong vang phan cac~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chu) OR (theo chieu)) manh - canh trinh ((va hang) or (da nang)) cong vang phan cac~".
• Adding a wildcard symbol may retrieve word variants: ((theo chu) OR (theo chieu)) manh - canh trinh ((va hang) or (da nang)) cong vang phan cac*.