Perhaps you should try some spelling variations:
nhanh lang » nhanh quang, nhanh thang, nhan dang
thanh van » thanh san, thanh toan, thanh phan
cong vang » cong lang, cong quang, cong ngang
vang toan » van toan, dang toan, quang toan
thao van » thai van, hao van, pham van
vat dung » van dung, va dung, viet dung
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: ((thao van) or (thanh van)) tinh - nhanh lang ((va ung) or (vat dung)) cong vang toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thao van) OR (thanh van)) tinh - nhanh lang ((va ung) OR (vat dung)) cong vang toan cao.
• Adding a wildcard symbol may retrieve word variants: ((thao van) or (thanh van)) tinh - nhanh lang ((va ung) or (vat dung)) cong vang toan cao*.