Perhaps you should try some spelling variations:
thanh lay » thanh lap, thanh tay, thanh lam
toc sach » hoc sach, doc sach, thuoc sach
cao khoa » lao khoa, bao khoa, cac khoa
hieu van » hieu va, thien van, lieu va
cham luc » cham soc, cham cuu, chat lua
nhan luc » nang luc
va thanh » gia thanh, ban thanh, va tinh
sach ky » sac ky, sach y, sach ty
lay cua » ly cua, day cua, lai cua
cua tre » cua te, cuu tre, cua triet

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc sach ky nang cao khoa. hieu van ((cham luc) or (nhan luc)) va thanh lay cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach ky nang cao khoa. hieu van ((cham luc) OR (nhan luc)) va thanh lay cua tre.
• Adding a wildcard symbol may retrieve word variants: toc sach ky nang cao khoa. hieu van ((cham luc) or (nhan luc)) va thanh lay cua tre*.