Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
van cau » van dau, van hau, van chat
cau xuc » cam xuc, cau luc, cau truc
va kinh » va tinh, qua kinh
lua tru » luu tru, luan thu, luat tri
va dan » ca dan, va dao, va dau
vi lua » vi luu

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ky nang x ho. hieu van cau xuc ((va kinh) or (va dan)) vi lua tru~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang x ho. hieu van cau xuc ((va kinh) OR (va dan)) vi lua tru*.