Perhaps you should try some spelling variations:
thien quan » trien quang, lien quan, thien van
nhung cong » dung cong, thong cong, hang cong
hoc thien » hoc hien, hoc thieu, hoc thiet
trinh cua » tinh cua, trinh quan, trinh luan
cong dan » cong san, cong tan, huong dan
dan chan » dan gian, dan ca, van chat
chan cau » phan cau, can cau, chinh cau

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

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