Perhaps you should try some spelling variations:
tu sach » thu sach, su sach, te sach
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
nang xa » nang x, lang xa, nang ma
hieu ve » hieu van
hieu va » lieu va, hieu qua
cau tuc » cau truc, cau tu, cau luc
va tinh » may tinh
tinh di » tinh doi, trinh di, tinh da
cuu tre » cua tre, cau tren, cau treo
tuc va » thuc va, truc va, tuc xa
di cuu » di cau, di cua, dinh cuu

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

• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty nang xa hoi. ((hieu ve) OR (hieu va)) cau tuc va tinh di cuu tre~.
• Adding a wildcard symbol may retrieve word variants: tu sach ty nang xa hoi. ((hieu ve) or (hieu va)) cau tuc va tinh di cuu tre*.