Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
van hanh » van thanh, ban hanh, van anh
chat xuc » chat huu, cam xuc, chao xu
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
ve chat » va chat, van chat
hieu ve » hieu va, hieu van
mai hoi » mai khoi, dai hoi, lai hoi
cuu tre » cua tre, cau tren, cau treo
ma hoi » xa hoi, ma hoa, me hoi
vi cuu » vi luu, vinh cuu

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 ky nang ((ma hoi) OR (mai hoi)). hieu ve chat xuc ((van hanh) or (ban thanh)) vi cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang ((ma hoi) OR (mai hoi)). hieu ve chat xuc ((van hanh) OR (ban thanh)) vi cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky nang ((ma hoi) OR (mai hoi)). hieu ve chat xuc ((van hanh) or (ban thanh)) vi cuu tre".
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang ((ma hoi) OR (mai hoi)). hieu ve chat xuc ((van hanh) or (ban thanh)) vi cuu tre*.