Perhaps you should try some spelling variations:
dang lap » dan lap, sang lap, dang loai
dung lap » dung lam, dung lai, dung lao
hieu ve » hieu va, hieu van
danh vi » hanh vi, dinh vi, danh di
va danh » va dinh, va dan, va hanh
cac luc » cau luc, coc luc, cac nuoc
vu sach » vu bach, su sach, vu khach
sach ky » sac ky, sach y, sach ty
ve cac » va cac, vien cac
luc va » duc va, tuc va, loc va
vi cua » vai cua, di cua
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: vu sach ky ((dang lap) or (dung lap)) hai. hieu ve cac luc va danh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ky ((dang lap) OR (dung lap)) hai. hieu ve cac luc va danh vi cua te.
• Adding a wildcard symbol may retrieve word variants: vu sach ky ((dang lap) or (dung lap)) hai. hieu ve cac luc va danh vi cua te*.