Perhaps you should try some spelling variations:
dang xay » dang van, van xay
hieu van » hieu va, thien van, lieu va
so sach » so sanh, bo sach, co sach
ky dang » ky nang, ky danh
xay hoi » xa hoi, tay hoi, cay phoi
van cam » van nam, van lam, van cau
sach ky » sac ky, sach y, sach ty
xuc va » duc va, luc va, xac va
tuc va » thuc va, truc va, tuc xa
cua tu » cua tuc, cua su, cua cu

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

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