Perhaps you should try some spelling variations:
truong ca » truong cao, truong va, trong ca
dang cong » dung cong
khi xanh » khia canh, thi hanh, thi anh
trung ca » trung cap, trung cua, trung can
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 ((trung ca) OR (truong ca)) 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 ((trung ca) OR (truong ca)) dang cong dan ((hanh tap) OR (han tap))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi khi xanh - thanh ((trung ca) OR (truong ca)) dang cong dan ((hanh tap) or (han tap))*".