Perhaps you should try some spelling variations:
thien thanh » tien thanh, thi thanh, hien hanh
thong cong » trong cong, tong cong, thong thong
chuan chon » chuan chat, chuan chau, chuan chuc
hoc thien » hoc hien, hoc thieu, hoc thiet
truong bo » truong cao, truong dao
cong dan » cong san, cong tan, huong dan
chan cho » chat cho, han cho, chinh cho

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 ((truong bo) or (truong dai)) thong cong dan ((chan cho) OR (chuan chon))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thien thanh - thanh ((truong bo) OR (truong dai)) thong cong dan ((chan cho) OR (chuan chon)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thien thanh - thanh ((truong bo) or (truong dai)) thong cong dan ((chan cho) OR (chuan chon))".
• Adding a wildcard symbol may retrieve word variants: hoc thien thanh - thanh ((truong bo) or (truong dai)) thong cong dan ((chan cho) OR (chuan chon))*.