Perhaps you should try some spelling variations:
chu quang » chat quang, vu quang
trong tac » trong cac, tuong tac, trong tan
thu bang » thu ban, thu hang, chu bang
tang cua » mang cua, hang cua, tang luan
dung cua » dung luan, dung cho
tac toan » tap toan, tam toan, hach toan
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 ((chu quang) or (thu bang)) - hanh ((tang cua) or (dung cua)) dung trong tac toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chu quang) OR (thu bang)) - hanh ((tang cua) OR (dung cua)) dung trong tac toan ban.
• Adding a wildcard symbol may retrieve word variants: theo ((chu quang) or (thu bang)) - hanh ((tang cua) or (dung cua)) dung trong tac toan ban*.