Perhaps you should try some spelling variations:
vien chat » van chat, vien cao, ve chat
thuat lap » thuat lanh, thuat xay, thuat bai
vien cac » vien bach, vien dai, vien da
thu sach » tu sach, thuat sach, thuoc sach
lang xa » lang ha, dang xay, lang van
ky lang » ky nang, ky dang, ky tang
va hanh » van hanh, va thanh, va danh
xuc va » duc va, tuc va, luc 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: ((thu sach) or (thuat lap)) ky lang xa hoi. hieu ((vien chat) OR (vien cac)) xuc va hanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu sach) OR (thuat lap)) ky lang xa hoi. hieu ((vien chat) OR (vien cac)) xuc va hanh vi cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thu sach) or (thuat lap)) ky lang xa hoi. hieu ((vien chat) OR (vien cac)) xuc va hanh vi cua te".
• Adding a wildcard symbol may retrieve word variants: ((thu sach) or (thuat lap)) ky lang xa hoi. hieu ((vien chat) OR (vien cac)) xuc va hanh vi cua te*.