Perhaps you should try some spelling variations:
hac loai » lac loai, phan loai, nhan loai
lang van » dang van, tang van, hoang van
cac loai » cac bai, cac giai, cac dai
hieu van » hieu va, thien van, lieu va
te sach » toc sach
danh vi » hanh vi, dinh vi, danh di
va danh » va dinh, va dan, va hanh
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
vi cua » vai cua, di cua
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: te sach ky ((nang xa) OR (lang van)) hoi. hieu van ((hac loai) OR (cac loai)) va danh vi cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky ((nang xa) or (lang van)) hoi. hieu van ((hac loai) OR (cac loai)) va danh vi cua te~".
• Adding a wildcard symbol may retrieve word variants: te sach ky ((nang xa) or (lang van)) hoi. hieu van ((hac loai) OR (cac loai)) va danh vi cua te*.