Perhaps you should try some spelling variations:
thien hach » thien thanh, hien hanh
trinh quan » tinh quang, trinh han
hoc thien » hoc hien, hoc thieu, hoc thiet
hang cong » dang cong, hang nong, bang cong
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 thien hach - hanh ((trinh quan) or (trinh luat)) hang cong dan toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thien hach - hanh ((trinh quan) OR (trinh luat)) hang cong dan toan tap.
• Adding a wildcard symbol may retrieve word variants: hoc thien hach - hanh ((trinh quan) or (trinh luat)) hang cong dan toan tap*.