Perhaps you should try some spelling variations:
tu cach » tu cac
te sach » toc sach
ky tang » ky nang, ky dang, kho tang
tang xa » trang xa, tang ma, lang xa
qua cao » qua cac, qua ca, qua cai
cao luc » bao luc, cao duc, cao suc
va danh » va dinh, va dan, va hanh
danh de » hanh de, dan de, dang de
cua tre » cua te, cuu tre, cua triet
luc va » duc va, tuc va, loc va
de cua » le cua, te cua, dieu cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu cach) or (te sach)) ky tang xa hoi. hieu qua cao luc va danh de cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu cach) OR (te sach)) ky tang xa hoi. hieu qua cao luc va danh de cua tre.
• Adding a wildcard symbol may retrieve word variants: ((tu cach) or (te sach)) ky tang xa hoi. hieu qua cao luc va danh de cua tre*.