Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
thu sach » tu sach, thuat sach, thuoc sach
cham xuc » cam xuc, chat xuc, cham soc
van hanh » ban hanh, van anh, van ban
bai choi » tai chi, bai hoc, bi cho
choi tre » cho tre, tuoi tre, khoe tre
sach ky » sac ky, sach y, sach ty
nang ma » tang ma, sang ma, nang cao
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
ma hoi » mai hoi, xa hoi, ma hoa

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 ma hoi. hieu ve cham xuc ((van hanh) or (van thanh)) bai choi tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ky nang ma hoi. hieu ve cham xuc ((van hanh) OR (van thanh)) bai choi tre.
• Adding a wildcard symbol may retrieve word variants: thu sach ky nang ma hoi. hieu ve cham xuc ((van hanh) or (van thanh)) bai choi tre*.