Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
thi hanh » thi thanh
sach ky » sac ky, sach y, sach ty
lam duc » lam duoc, pham duc, nam duoc
va danh » va dinh, va dan, va hanh
danh vi » hanh vi, dinh vi, danh di
luu tre » cuu tre, luy tre
tru » truc

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach ky nang x ho. ((lieu va) or (thi hanh)) lam duc va danh vi ((luu tre) or (luu tru))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ky nang x ho. ((lieu va) OR (thi hanh)) lam duc va danh vi ((luu tre) OR (luu tru)).
• Adding a wildcard symbol may retrieve word variants: thu sach ky nang x ho. ((lieu va) or (thi hanh)) lam duc va danh vi ((luu tre) or (luu tru))*.