Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
dinh sai » dinh tai, danh sai, dinh hai
ve triet » va trien, su triet
te sach » toc sach
ky lang » ky nang, ky tang, tay lang
ky dang » ky nang, ky danh
van cam » van nam, van lam, van cau
va dinh » van dinh, va kinh, va tinh
xuc va » duc va, tuc va, luc va
cua te » cua tu

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

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