Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
kinh van » dinh van, vinh van, binh van
ty nang » ky nang, ty xang, ly nang
ty hang » ly hang, ty xang, thi hang
hieu ve » hieu va, hieu van
va kinh » va tinh, qua kinh
van cuu » van cau, van chu, van cu
cuu tre » cua tre, cau tren, cau treo
ve cam » ve cham, ve cac, va cam
xuc va » duc va, tuc va, luc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc sach ((ty nang) or (ty hang)) xa hoi. hieu ve cam xuc va kinh van cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach ((ty nang) OR (ty hang)) xa hoi. hieu ve cam xuc va kinh van cuu tre.
• Adding a wildcard symbol may retrieve word variants: toc sach ((ty nang) or (ty hang)) xa hoi. hieu ve cam xuc va kinh van cuu tre*.