Perhaps you should try some spelling variations:
phap phong » hai phong, phap phan
hoc thieu » toc thieu, hoc hien
phong tac » phong tuc, phong cac, phong tai
doc hieu » toc thieu, hoc hien
tac nhan » tao nhan, cac nhan, dac nhan
cong va » dong va, cong ha, cong tac
va phap » va phat, ban phap
nhan ha » nhanh ha, nhan hoa, nhan va

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doc hieu) or (hoc thieu)) sang - thanh cong va phap phong tac nhan ha~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doc hieu) OR (hoc thieu)) sang - thanh cong va phap phong tac nhan ha*.