Perhaps you should try some spelling variations:
trinh luan » trinh luat, trinh quan, trinh han
nhung cong » dung cong, thong cong, hang cong
dien sach » dien anh
trinh cua » trinh luat, trinh quan, trinh chat
hoc dien » hoc hien, hoc vien, hoc dieu
tinh cua » sinh cua, tinh chat, tranh cua
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan tap » toan 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 dien sach - hanh ((((trinh cua) or (trinh luan))) or (tinh cua)) nhung cong dan toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc dien sach - hanh ((((trinh cua) OR (trinh luan))) OR (tinh cua)) nhung cong dan toan tap.
• Adding a wildcard symbol may retrieve word variants: hoc dien sach - hanh ((((trinh cua) or (trinh luan))) or (tinh cua)) nhung cong dan toan tap*.