Perhaps you should try some spelling variations:
nhan thuc » nhan luc, dan thuc, toan thuc
van thanh » ban thanh, van tuan
thanh vi » hanh vi, thanh va, thanh ve
thu sach » thuat sach, thuoc sach, thu hoach
nang mai » nang ma, nang tai, lang mai
vi nhan » li nhan, va nhan, vi phan
xuc van » duc van, luc van, vuc van
hieu ve » hieu va, hieu van
tu sach » su sach, te sach, vu sach
tu cach » tu cac
mai hoi » mai khoi, dai hoi, lai hoi
y nang » ky nang, ly nang, v nang
ve cam » ve cham, ve cac, va cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((((tu sach) OR (tu cach))) or (thu sach)) y nang mai hoi. hieu ve cam xuc van thanh vi nhan thuc~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((tu sach) OR (tu cach))) OR (thu sach)) y nang mai hoi. hieu ve cam xuc van thanh vi nhan thuc.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((tu sach) OR (tu cach))) or (thu sach)) y nang mai hoi. hieu ve cam xuc van thanh vi nhan thuc".
• Adding a wildcard symbol may retrieve word variants: ((((tu sach) OR (tu cach))) or (thu sach)) y nang mai hoi. hieu ve cam xuc van thanh vi nhan thuc*.