Perhaps you should try some spelling variations:
theo chua » theo chu, ho chua, cheo cua
chua xang » chua nang, chuc nang, chu bang
bang cong » dang cong, bang song, hang cong
cong van » cong vang, cong san, song van
quan cua » quan luan, ban cua, gian cua
va bang » va nang, va lang, va ban
tuan cu » tuan tu, tuan thu, than cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chua xang - ((tinh toan) or (canh tranh)) va bang cong van ((tuan cu) or (quan cua))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chua xang - ((tinh toan) OR (canh tranh)) va bang cong van ((tuan cu) OR (quan cua)).
• Adding a wildcard symbol may retrieve word variants: theo chua xang - ((tinh toan) or (canh tranh)) va bang cong van ((tuan cu) or (quan cua))*.