Perhaps you should try some spelling variations:
thien thanh » tien thanh, thi thanh, hien hanh
thanh trung » thanh tung
hoc thien » hoc hien, hoc thieu, hoc thiet
cua thong » cua thuong, cua tong, suat thong
cua khong » hua khong, cua phuong, cua thuong
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh
phan cac » nhan cach, phan dau, phan lap

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 ((cua thong) OR (cua khong)) ((cong dan) or (cong tan)) phan cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thien thanh - thanh trung ((cua thong) OR (cua khong)) ((cong dan) OR (cong tan)) phan cac.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thien thanh - thanh trung ((cua thong) OR (cua khong)) ((cong dan) or (cong tan)) phan cac".
• Adding a wildcard symbol may retrieve word variants: hoc thien thanh - thanh trung ((cua thong) OR (cua khong)) ((cong dan) or (cong tan)) phan cac*.