Perhaps you should try some spelling variations:
hoc sach » hoc sinh, hoc anh
cham xuc » cam xuc, chat xuc, cham soc
ban hanh » ban hang
hoc cac » hoc cao
ky lang » ky dang, ky tang, tay lang
hieu va » lieu va, hieu qua
va cham » va chat, va tham
xuc ban » duc ban, cuc ban, quoc ban
vi cua » vai cua, di cua
cua te » cua tu

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

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