Perhaps you should try some spelling variations:
dung cong » dung trong
cong manh » cong danh, duong manh, cong thanh
manh toan » thanh toan, anh tuan, tinh toan
chu sang » thu sang, chieu sang, chuc nang
chu bang » thu bang, chuc nang, chu quang
tung vat » tang vat, tung va, luong vat
dung vat » dung va, dong vat, dung dat
toan cao » toan ban, toan tap

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: chao ((chu sang) OR (chu bang)) - manh ((tung vat) OR (dung vat)) dung cong manh toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "chao ((chu sang) or (chu bang)) - manh ((tung vat) OR (dung vat)) dung cong manh toan cao~".
• Adding a wildcard symbol may retrieve word variants: chao ((chu sang) or (chu bang)) - manh ((tung vat) OR (dung vat)) dung cong manh toan cao*.