Perhaps you should try some spelling variations:
khong cong » thong cong, khong cang, chong cong
theo phap » thi phap
phap tinh » phap sinh, phap tieng, phap tang
hanh tang » hanh trang, anh tang, hanh mang
tang khoi » dang khoi, tong khoi, hang khoa
cong tac » cong ty
ran cau » van cau, can cau, tran chau
ban cau » bang cau, ban can, van cau

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 - hanh tang khoi khong cong tac ((ran cau) or (ban cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo phap tinh - hanh tang khoi khong cong tac ((ran cau) OR (ban cau)).
• Adding a wildcard symbol may retrieve word variants: theo phap tinh - hanh tang khoi khong cong tac ((ran cau) or (ban cau))*.