Perhaps you should try some spelling variations:
thanh tung » thanh cong
dang cong » dung cong
khi xanh » khia canh, thi hanh, thi anh
tung cap » trung cap, cung cap, thong cap
cap dang » cao dang, cac dang, cap bang
cong dan » cong san, cong tan, huong dan
hanh tap » hanh tai, hang tap, hanh cap
han tap » han tai, toan tap, nhan tai

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi khi xanh - thanh tung cap dang cong dan ((hanh tap) or (han tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi khi xanh - thanh tung cap dang cong dan ((hanh tap) OR (han tap)).
• Adding a wildcard symbol may retrieve word variants: doi khi xanh - thanh tung cap dang cong dan ((hanh tap) or (han tap))*.