Perhaps you should try some spelling variations:
trinh quan » tinh quang, trinh luat, trinh han
trinh luan » trinh luat, trinh han, trinh toan
phan tinh » phan tich, phan dinh, phan kinh
tong cong » trong cong, cong cong, dung cong
hoc phan » hoc dan, hoc pho
tinh cua » trinh cua, sinh cua, tinh chat
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc phan tinh - hanh ((((trinh quan) or (trinh luan))) or (tinh cua)) tong cong dan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc phan tinh - hanh ((((trinh quan) OR (trinh luan))) OR (tinh cua)) tong cong dan toan ban.
• Adding a wildcard symbol may retrieve word variants: hoc phan tinh - hanh ((((trinh quan) or (trinh luan))) or (tinh cua)) tong cong dan toan ban*.