Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu tinh » trieu tinh, lieu tinh, chau tinh
nhung cong » dung cong, thong cong, nhung don
tranh cua » doanh cua, manh cua
hang cong » dang cong, hang nong, bang cong
dan chan » dan gian, dan ca
van chat » cao chat

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 chieu tinh - canh tranh cua ((nhung cong) OR (hang cong)) ((dan chan) OR (van chat)) cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu tinh - canh tranh cua ((nhung cong) or (hang cong)) ((dan chan) OR (van chat)) cao~".
• Adding a wildcard symbol may retrieve word variants: theo chieu tinh - canh tranh cua ((nhung cong) or (hang cong)) ((dan chan) OR (van chat)) cao*.