Perhaps you should try some spelling variations:
theo phap » thi phap
phap tinh » phap sinh, phap tieng, phap tang
tranh cua » doanh cua, manh cua
dung cong » dung trong
cong cong » cong dong, trong cong, dang cong
tran van » luan van
san van » tan van, luan van, dang van

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 - canh tranh cua ((dung cong) or (cong cong)) ((san van) or (tran van)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo phap tinh - canh tranh cua ((dung cong) OR (cong cong)) ((san van) OR (tran van)) ban.
• Adding a wildcard symbol may retrieve word variants: theo phap tinh - canh tranh cua ((dung cong) or (cong cong)) ((san van) or (tran van)) ban*.