Perhaps you should try some spelling variations:
theo phap » thi phap
phap tinh » phap sinh, phap tieng, phap tang
nhan dang » nhan dan, phan dang, tran dang
luan hoan » luan van
long danh » cong danh, dong danh, long banh
danh hanh » danh thanh, dang hanh, dan hanh
hanh cac » hang cac, hanh cat, hanh cham

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 - nhan dang ((quan hoang) or (luan hoan)) long danh hanh cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo phap tinh - nhan dang ((quan hoang) OR (luan hoan)) long danh hanh cac.
• Adding a wildcard symbol may retrieve word variants: theo phap tinh - nhan dang ((quan hoang) or (luan hoan)) long danh hanh cac*.