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 nong » thang long, han tong
nong dan » cong dan, nong san, nguong 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 nong 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 nong dan toan tap.
• Adding a wildcard symbol may retrieve word variants: hoc thien hach - hanh ((trinh quan) or (trinh luat)) hang nong dan toan tap*.