Perhaps you should try some spelling variations:
thanh toan » thanh hoa, thanh san, tinh toan
tranh van » tran van, trinh van, thanh van
nang cong » nang song, dang cong, bang cong
manh toan » anh tuan, tinh toan
cua tinh » cua sinh, ha tinh, hoa tinh
van nang » van quang, van ban, van dong
va tinh » may tinh

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

• Performing a fuzzy search may retrieve terms with similar spellings: lai ((cua tinh) OR (va tinh)) - canh tranh van nang cong ((manh toan) or (thanh toan)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: lai ((cua tinh) OR (va tinh)) - canh tranh van nang cong ((manh toan) OR (thanh toan)) cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "lai ((cua tinh) OR (va tinh)) - canh tranh van nang cong ((manh toan) or (thanh toan)) cao".
• Adding a wildcard symbol may retrieve word variants: lai ((cua tinh) OR (va tinh)) - canh tranh van nang cong ((manh toan) or (thanh toan)) cao*.