Perhaps you should try some spelling variations:
thien hach » thien thanh, hien hanh
trinh quan » tinh quang, trinh luat, trinh han
nhung cong » dung cong, thong cong, hang cong
hoc thien » hoc hien, hoc thieu, hoc thiet
trinh cua » trinh luat, trinh luan, trinh chat
tinh cua » sinh cua, tinh chat, tranh cua
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan cao » toan ban, toan tap

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 cua) OR (trinh quan))) or (tinh cua)) nhung cong dan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thien hach - hanh ((((trinh cua) OR (trinh quan))) OR (tinh cua)) nhung cong dan toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thien hach - hanh ((((trinh cua) OR (trinh quan))) or (tinh cua)) nhung cong dan toan cao".
• Adding a wildcard symbol may retrieve word variants: hoc thien hach - hanh ((((trinh cua) OR (trinh quan))) or (tinh cua)) nhung cong dan toan cao*.