Perhaps you should try some spelling variations:
hanh vai » hanh vi, hanh va, hanh tai
cuu tre » cau tren, cau treo
thi van » thi lan, thi hanh, thi nang
cua tre » cua te, cua triet, dua tren
va hanh » van hanh, va thanh, va danh
cau loc » hau loc, cau hoc, cau luc
van cau » van dau, van hau, van chat
sang ma » tang ma, nang ma, sang tao
nang xa » nang x, lang xa, nang ma
sac ky » cac ky, sai ky
loc va » hoc va, luc va
tu sac » tu sach, tu cac, tu san

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: tu sac ky ((nang xa) OR (sang ma)) hoi. thi van cau loc va hanh vai ((cua tre) OR (cuu tre))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky ((nang xa) or (sang ma)) hoi. thi van cau loc va hanh vai ((cua tre) OR (cuu tre))~".
• Adding a wildcard symbol may retrieve word variants: tu sac ky ((nang xa) or (sang ma)) hoi. thi van cau loc va hanh vai ((cua tre) OR (cuu tre))*.