Perhaps you should try some spelling variations:
thong quang » thong quan, thong qua, luong quang
hanh thong » anh thong, hanh trong, hang thong
quang dung » quang trung, ung dung, cuong dung
dung cong » dung trong
thi phap » thi hai, thi ha, thi hao
cong tac » cong ty
tac pham » thuc pham, san pham
pham can » pham van, pham lan, pham ca

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) or (thi phap)) tinh - hanh thong quang dung cong tac pham can~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo phap) OR (thi phap)) tinh - hanh thong quang dung cong tac pham can*.