Perhaps you should try some spelling variations:
phung dung » phuong dung, nhung dung, phung dang
doi chieu » doc hieu, doi chi, mot chieu
hanh dang » hanh dong, anh dang, hanh dung
su phung » su phuong, su hung, su phong
dung dat » dung va, dung tai
dat phan » data phan, dam phan, sat phan
phan lap » phan dau

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((doi chieu) or (toc thieu)) quang - hanh dang su phung dung dat phan lap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (toc thieu)) quang - hanh dang su phung dung dat phan lap*.