Perhaps you should try some spelling variations:
thanh trung » thanh tung
theo phap » thi phap
phap tinh » phap sinh, phap tieng, phap tang
cong manh » cong danh, duong manh, cong thanh
manh toan » thanh toan, anh tuan, tinh toan
van nang » van quang, van dong, van dung
toan cau » 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: theo phap tinh - thanh trung ((van nang) or (van ban)) cong manh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo phap tinh - thanh trung ((van nang) OR (van ban)) cong manh toan cau.
• Adding a wildcard symbol may retrieve word variants: theo phap tinh - thanh trung ((van nang) or (van ban)) cong manh toan cau*.