Perhaps you should try some spelling variations:
cong thanh » dong thanh, cong trinh, cong tan
theo phap » thi phap
phap tinh » phap sinh, phap tieng, phap tang
hanh hang » thanh hang, hang hang, hanh han
hang cua » mang cua, hang ca, huong cua
cong dan » cong san, cong tan, huong dan
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 - hanh hang cua cong ((cong dan) or (cong thanh)) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo phap tinh - hanh hang cua cong ((cong dan) OR (cong thanh)) toan cao.
• Adding a wildcard symbol may retrieve word variants: theo phap tinh - hanh hang cua cong ((cong dan) or (cong thanh)) toan cao*.