Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
dang xay » dang van, van xay
hieu van » hieu va, thien van, lieu va
dinh sai » dinh tai, danh sai, dinh hai
ve triet » va trien, su triet
sach ky » sac ky, sach y, sach ty
ky dang » ky nang, ky danh
xay hoi » xa hoi, tay hoi, cay phoi
van cam » van nam, van lam, van cau
va dinh » van dinh, va kinh, va tinh
cua tuc » cua duc, cua tu, cua thuoc
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 ky dang xay hoi. hieu van cam xuc va dinh sai ((ve triet) or (cua tuc))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach ky dang xay hoi. hieu van cam xuc va dinh sai ((ve triet) OR (cua tuc)).
• Adding a wildcard symbol may retrieve word variants: toc sach ky dang xay hoi. hieu van cam xuc va dinh sai ((ve triet) or (cua tuc))*.