Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
phap tinh » phap sinh, phap tieng, phap tang
anh quang » anh xquang, anh quan, nhanh quang
cua nhung » va nhung
thi phap » theo phap, thi hai, thi ha
anh tang » anh bang, anh dang, anh nang
van toan » van tuan, van tan, van thanh
dan than » dan chan, ban than, van than

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 tinh - ((anh tang) or (anh quang)) cua nhung cong ((van toan) or (dan than)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thi phap tinh - ((anh tang) OR (anh quang)) cua nhung cong ((van toan) OR (dan than)) cau.
• Adding a wildcard symbol may retrieve word variants: thi phap tinh - ((anh tang) or (anh quang)) cua nhung cong ((van toan) or (dan than)) cau*.