Perhaps you should try some spelling variations:
nang lap » nang cap, sang lap, nang lam
vien cac » vien bach, vien dai, vien da
su sach » so sach
vu sach » vu bach, vu khach
lap lai » lap tai, lay lai, lam lai
danh vi » hanh vi, dinh vi, danh di
va danh » va dinh, va dan, va hanh
vi cua » vai cua, di cua
xuc va » duc va, tuc va, luc va
ve cac » va cac
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: ((su sach) or (vu sach)) ky nang lap lai. hieu ((ve cac) OR (vien cac)) xuc va danh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (vu sach)) ky nang lap lai. hieu ((ve cac) OR (vien cac)) xuc va danh vi cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) or (vu sach)) ky nang lap lai. hieu ((ve cac) OR (vien cac)) xuc va danh vi cua te".
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (vu sach)) ky nang lap lai. hieu ((ve cac) OR (vien cac)) xuc va danh vi cua te*.