Perhaps you should try some spelling variations:
triet tinh » trieu tinh, trien tinh, trien kinh
nhung cong » dung cong, thong cong, hang cong
mon triet » minh triet, bo triet, mao triet
hanh tang » hanh trang, anh tang, hanh mang
cong dan » cong san, cong tan, huong dan
tang va » trang va, tang van, thang va

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

• Performing a fuzzy search may retrieve terms with similar spellings: mon triet tinh - hanh tang va nhung cong dan ((toan ban) or (van ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: mon triet tinh - hanh tang va nhung cong dan ((toan ban) OR (van ban))*.