Perhaps you should try some spelling variations:
cham xuc » cam xuc, chat xuc, cham soc
nang mai » nang ma, nang tai, lang mai
ban hang » ngan hang
van hanh » van thanh, van anh, van ban
tu sach » thu sach, su sach, te sach
sach ty » sach y, sach tu, sach thu
vu cham » va cham, vu kham, tu cham
hieu vu » hieu va, hieu ve, hieu su
mai hoi » mai khoi, dai hoi, lai hoi
ty nang » ky nang, ty xang, ty hang
cua tre » cua te, cuu tre, cua triet
vi cua » vai cua, di 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 sach ty nang mai hoi. hieu vu cham xuc ((van hanh) or (((ban hanh) OR (ban hang)))) vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty nang mai hoi. hieu vu cham xuc ((van hanh) OR (((ban hanh) OR (ban hang)))) vi cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ty nang mai hoi. hieu vu cham xuc ((van hanh) or (((ban hanh) OR (ban hang)))) vi cua tre".
• Adding a wildcard symbol may retrieve word variants: tu sach ty nang mai hoi. hieu vu cham xuc ((van hanh) or (((ban hanh) OR (ban hang)))) vi cua tre*.