Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
cham duc » pham duc, cham soc, pham duy
va thanh » gia thanh, va tinh, le thanh
tu sach » thu sach, su sach, te sach
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
nang xa » nang x, lang xa, nang ma
hieu su » hieu sau, tieu su, hieu so
su cham » su pham, tu cham, vu cham
va chua » vua chua, ca chua, va chu
chua xe » chua xi, chuan he, chuan ve

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 xa hoi. hieu su cham duc ((va thanh) OR (ban thanh)) va chua xe~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ty nang xa hoi. hieu su cham duc ((va thanh) OR (ban thanh)) va chua xe".
• Adding a wildcard symbol may retrieve word variants: tu sach ty nang xa hoi. hieu su cham duc ((va thanh) OR (ban thanh)) va chua xe*.