Perhaps you should try some spelling variations:
thanh trung » thanh tung
nhung cong » dung cong, thong cong, hang cong
hien tinh » khien tinh, thien tinh, bien tinh
trung vap » trung cap, trung va, trung van
vap nhung » va nhung, ve nhung, voi nhung
cong tan » cong tac, cong san, cong thanh
phan cac » nhan cach, phan lap, phan van
phan dau » phan tu
hang dau » hang va, hang tai

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

• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien tinh - thanh trung vap nhung cong tan ((phan cac) OR (((phan dau) OR (hang dau))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien tinh - thanh trung vap nhung cong tan ((phan cac) or (((phan dau) OR (hang dau))))~".
• Adding a wildcard symbol may retrieve word variants: hoc hien tinh - thanh trung vap nhung cong tan ((phan cac) or (((phan dau) OR (hang dau))))*.