Perhaps you should try some spelling variations:
van trinh » van thinh, van tinh, dan trinh
toc sach » doc sach, thuoc sach, nuoc sach
hoc sach » hoc sinh, hoc cac, hoc anh
hieu van » hieu va, thien van, lieu va
trinh tu » trinh ky, trinh do
nang xa » nang x, lang xa, nang ma
cuu tre » cua tre, cau tren, cau treo
y nang » ky nang, ly nang, v nang
nam tu » nam thu, nam thuc
tu van » tu va
tu cuu » tu huu, tu cua, tu chu

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) OR (hoc sach)) y nang xa hoi. hieu van nam tu van trinh tu cuu tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((toc sach) OR (hoc sach)) y nang xa hoi. hieu van nam tu van trinh tu cuu tre".
• Adding a wildcard symbol may retrieve word variants: ((toc sach) OR (hoc sach)) y nang xa hoi. hieu van nam tu van trinh tu cuu tre*.