Perhaps you should try some spelling variations:
thanh toan » thanh hoa, thanh san, tinh toan
manh tung » manh hung, thanh tung
dung cong » dung trong
manh toan » anh tuan, tinh toan
chu sang » thu sang, chieu sang, chuc nang
chu bang » thu bang, chuc nang, chu quang
tung vat » dung vat, tang vat, tung va
vat dung » van dung, va dung, viet dung

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

• Performing a fuzzy search may retrieve terms with similar spellings: chao ((chu sang) or (chu bang)) - manh tung vat dung cong ((manh toan) OR (thanh toan)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: chao ((chu sang) OR (chu bang)) - manh tung vat dung cong ((manh toan) OR (thanh toan)) cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "chao ((chu sang) or (chu bang)) - manh tung vat dung cong ((manh toan) OR (thanh toan)) cao".
• Adding a wildcard symbol may retrieve word variants: chao ((chu sang) or (chu bang)) - manh tung vat dung cong ((manh toan) OR (thanh toan)) cao*.