Perhaps you should try some spelling variations:
vat trong » viet trong, cay trong, dot trong
theo chu » theo chieu, cho chu, chao chu
chu tinh » chau tinh, chua tinh, cuu tinh
ha trong » hoa trong, hai trong, hat trong
cong van » cong vang, cong san, song van
van toan » van tuan, van tan, van thanh
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chu tinh - canh tranh ((ha trong) or (vat trong)) cong van toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu tinh - canh tranh ((ha trong) OR (vat trong)) cong van toan cau*.