Perhaps you should try some spelling variations:
hanh thai » nhanh thai, hinh thai, hanh tai
toc sach » hoc sach, doc sach, thuoc sach
hieu van » hieu va, thien van, lieu va
nam thuc » nam thuoc, am thuc, nam thu
thai cua » than cua, tai cuc, tri cua
sach ky » sac ky, sach y, sach ty
ky dang » ky nang, ky danh
dang xa » dang xay, lang xa, dang ha
va hanh » van hanh, va thanh, va danh
nam tu » nam thu
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: toc sach ky dang xa hoi. hieu van ((nam tu) or (nam thuc)) va hanh thai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach ky dang xa hoi. hieu van ((nam tu) OR (nam thuc)) va hanh thai cua te.
• Adding a wildcard symbol may retrieve word variants: toc sach ky dang xa hoi. hieu van ((nam tu) or (nam thuc)) va hanh thai cua te*.