Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
hien manh » hien hanh, hieu manh, hien nhanh
tien manh » tien anh, tien thanh, tieng anh
trung cua » truong cua, trung tuan, dung cua
trung cap » truong cao, trung tam
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than cap » khan cap, thanh lap, thanh cac

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hien manh) OR (tien manh)) - thanh ((trung cua) or (trung cap)) thong cong dan than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien manh) OR (tien manh)) - thanh ((trung cua) OR (trung cap)) thong cong dan than cap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien manh) OR (tien manh)) - thanh ((trung cua) or (trung cap)) thong cong dan than cap".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien manh) OR (tien manh)) - thanh ((trung cua) or (trung cap)) thong cong dan than cap*.