Perhaps you should try some spelling variations:
thanh tung » thanh cong
hien xanh » hien hanh, hien nhanh, chieu xanh
cap trong » cay trong, ca trong, cad trong
tung cap » trung cap, cung cap, thong cap
cong dan » cong san, huong dan, cong dong
cong tan » cong san, cong thanh, cong ty
cong tac » cong ty

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 xanh - thanh tung cap trong ((cong dan) or (((cong tan) OR (cong tac)))) phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien xanh - thanh tung cap trong ((cong dan) OR (((cong tan) OR (cong tac)))) phan tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien xanh - thanh tung cap trong ((cong dan) or (((cong tan) OR (cong tac)))) phan tu".
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - thanh tung cap trong ((cong dan) or (((cong tan) OR (cong tac)))) phan tu*.