Perhaps you should try some spelling variations:
thanh trung » thanh tung
hieu manh » chieu xanh, hieu nganh, dieu hanh
hiem ngan » kim ngan, viem gan
trung vap » trung cap, trung va, trung van
vap thong » va thong, van thong, phap thong
nhan cach » phan cac
dan cach » dan cac, dan canh, bang cach

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 ((hieu manh) OR (hiem ngan)) - thanh trung vap thong thong ((dan cach) OR (nhan cach)) cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hieu manh) or (hiem ngan)) - thanh trung vap thong thong ((dan cach) OR (nhan cach)) cau~".
• Adding a wildcard symbol may retrieve word variants: hoc ((hieu manh) or (hiem ngan)) - thanh trung vap thong thong ((dan cach) OR (nhan cach)) cau*.