Perhaps you should try some spelling variations:
cham xuc » cam xuc, chat xuc, cham soc
dang xay » dang van, van xay
van hanh » van thanh, ban hanh, van anh
bo sach » co sach, hoc sach
hai cua » thai cua, dai cua, hoi cua
vai cua » dai cua, lai cua, bai cua
xuc van » duc van, luc van, vuc van
ve cham » va cham, ve chat, vu cham
sach ky » sac ky, sach y, sach ty
hieu ve » hieu va, hieu van

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

• Performing a fuzzy search may retrieve terms with similar spellings: bo sach ky ((nang x) or (dang xay)) hoi. hieu ve cham xuc van hanh ((vai cua) OR (hai cua)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: bo sach ky ((nang x) OR (dang xay)) hoi. hieu ve cham xuc van hanh ((vai cua) OR (hai cua)) te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "bo sach ky ((nang x) or (dang xay)) hoi. hieu ve cham xuc van hanh ((vai cua) OR (hai cua)) te".
• Adding a wildcard symbol may retrieve word variants: bo sach ky ((nang x) or (dang xay)) hoi. hieu ve cham xuc van hanh ((vai cua) OR (hai cua)) te*.