Perhaps you should try some spelling variations:
khien tinh » thien tinh, khien thich, bien tinh
luan thong » luan phong, luan tuong, luat thong
thong cong » trong cong, tong cong, thong thong
tien tinh » tien thinh, tien trinh, thien tinh
hanh hang » thanh hang, hang hang, hanh han
hang luan » tang luan, dung luan
cong dan » cong san, cong tan, huong dan
phan lap » phan dau
pha tap » pham tai

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((tien tinh) or (khien tinh)) - hanh hang luan thong cong dan ((phan lap) or (pha tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((tien tinh) OR (khien tinh)) - hanh hang luan thong cong dan ((phan lap) OR (pha tap)).
• Adding a wildcard symbol may retrieve word variants: hoc ((tien tinh) or (khien tinh)) - hanh hang luan thong cong dan ((phan lap) or (pha tap))*.