Perhaps you should try some spelling variations:
thuat lanh » thuat lap, thuat san
tu sach » thu sach, su sach, te sach
va hanh » van hanh, va thanh, va danh
va cham » va chat, va tham
vu cham » vu kham, tu cham, qua cham
lang xa » lang ha, dang xay, lang van
ky lang » ky nang, ky dang, ky tang
cua tre » cua te, cuu tre, cua triet
xuc va » duc va, tuc va, luc va
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sach) or (thuat lanh)) ky lang xa hoi. hieu ((vu cham) OR (va cham)) xuc va hanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thuat lanh)) ky lang xa hoi. hieu ((vu cham) OR (va cham)) xuc va hanh vi cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (thuat lanh)) ky lang xa hoi. hieu ((vu cham) OR (va cham)) xuc va hanh vi cua tre".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (thuat lanh)) ky lang xa hoi. hieu ((vu cham) OR (va cham)) xuc va hanh vi cua tre*.