Perhaps you should try some spelling variations:
phap sinh » phau sinh, phai sinh, phap tinh
phau benh » kham benh
dung cong » dung trong
cong manh » cong danh, duong manh, cong thanh
manh toan » thanh toan, anh tuan, tinh toan
bang cua » mang cua, hang cua, tang cua
toan tap » toan ban
ban cua » ban quan

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

• Performing a fuzzy search may retrieve terms with similar spellings: thi ((phap sinh) or (phau benh)) - anh ((bang cua) or (ban cua)) dung cong manh toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thi ((phap sinh) OR (phau benh)) - anh ((bang cua) OR (ban cua)) dung cong manh toan tap.
• Adding a wildcard symbol may retrieve word variants: thi ((phap sinh) or (phau benh)) - anh ((bang cua) or (ban cua)) dung cong manh toan tap*.