Perhaps you should try some spelling variations:
dieu cua » dieu tra
thanh va » thanh van, hanh va, thanh ha
thuoc ma » hoc ma, duoc ma
thuoc va » thuc va, thuong va, thuoc tai
cau treo » cau theo, cau tren, cau triet
bieu cua » hieu cua, ben cua, dien cua
sac ky » cac ky, sai ky
nang o » nang co, nang ho, nang ro
va cau » van cau, va cac, va dau
tu sac » tu sach, tu cac, tu san
o hoi » co hoi, o hoc, o hai

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sac ky nang o hoi. ((bieu cua) or (dieu cua)) nam ((thuoc va) OR (thuoc ma)) thanh va cau treo~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky nang o hoi. ((bieu cua) OR (dieu cua)) nam ((thuoc va) OR (thuoc ma)) thanh va cau treo.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky nang o hoi. ((bieu cua) or (dieu cua)) nam ((thuoc va) OR (thuoc ma)) thanh va cau treo".
• Adding a wildcard symbol may retrieve word variants: tu sac ky nang o hoi. ((bieu cua) or (dieu cua)) nam ((thuoc va) OR (thuoc ma)) thanh va cau treo*.