Perhaps you should try some spelling variations:
thien thanh » tien thanh, thi thanh, hien hanh
nhung cong » dung cong, thong cong, hang cong
hoc thien » hoc hien, hoc thieu, hoc thiet
trung va » truong va, trung ha, trung tam
trang va » tran van, hang va
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 thanh - thanh ((trung va) OR (trang va)) nhung cong dan toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thien thanh - thanh ((trung va) OR (trang va)) nhung cong dan toan cao".
• Adding a wildcard symbol may retrieve word variants: hoc thien thanh - thanh ((trung va) OR (trang va)) nhung cong dan toan cao*.