Perhaps you should try some spelling variations:
trinh luan » trinh luat, trinh quan, trinh han
chinh luan » chinh ngan, binh luan
hieu lang » chieu sang, hieu quang, nhieu tang
chinh cua » chinh ca, chinh sua, hinh cua
dung cong » dung trong
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan cau » toan cao, toan ban, toan tap
ho hieu » ho chieu, hoi hieu, nho hieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho hieu lang - hanh ((chinh cua) or (((chinh luan) or (trinh luan)))) dung cong dan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho hieu lang - hanh ((chinh cua) OR (((chinh luan) OR (trinh luan)))) dung cong dan toan cau.
• Adding a wildcard symbol may retrieve word variants: ho hieu lang - hanh ((chinh cua) or (((chinh luan) or (trinh luan)))) dung cong dan toan cau*.