Perhaps you should try some spelling variations:
hanh thai » nhanh thai, hinh thai, hanh tai
toc sach » hoc sach, doc sach, thuoc sach
nam thuc » nam thuoc, am thuc, nam thu
thai cua » than cua, tai cuc, tri cua
van hanh » van thanh, ban hanh, van anh
dang ha » dung ha, lang ha, tang ha
dong ha » dong hoa, dong va, dong hoc
sach ky » sac ky, sach y, sach ty
nam tu » nam thu
cua te » cua tu

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

• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach ky ((dang ha) OR (dong ha)) hoi. lieu va ((nam tu) OR (nam thuc)) van hanh thai cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach ky ((dang ha) OR (dong ha)) hoi. lieu va ((nam tu) or (nam thuc)) van hanh thai cua te~".
• Adding a wildcard symbol may retrieve word variants: toc sach ky ((dang ha) OR (dong ha)) hoi. lieu va ((nam tu) or (nam thuc)) van hanh thai cua te*.