Perhaps you should try some spelling variations:
hoc sach » hoc sinh, hoc cac, hoc anh
va trien » va truyen, va thiet, va tuyen
mai khoi » mai khoa, tai khoa, cac khoi
nang mai » nang ma, nang tai, lang mai
van cac » van cau, van bac, dan cac
va hanh » van hanh, va thanh, va danh
van hac » van hoc, van ha, van hai
y nang » ky nang, ly nang, v nang
xuc va » duc va, tuc va, luc va
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 y nang mai khoi. hieu ((van cac) or (van hac)) xuc va hanh vi ((cua te) or (va trien))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc sach y nang mai khoi. hieu ((van cac) OR (van hac)) xuc va hanh vi ((cua te) OR (va trien)).
• Adding a wildcard symbol may retrieve word variants: hoc sach y nang mai khoi. hieu ((van cac) or (van hac)) xuc va hanh vi ((cua te) or (va trien))*.