Perhaps you should try some spelling variations:
tham soc » tham nuoc, thai son, ham so
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
hieu va » lieu va, hieu qua
va hanh » van hanh, va thanh, va danh
cua tre » cua te, cuu tre, cua triet
de cac » den cac, de cai, do cac
ve cac » va cac, vien cac
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: ((de cac) OR (ve cac)) ky lang xa hoi. hieu va ((tham soc) OR (cham soc)) va hanh vi cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((de cac) OR (ve cac)) ky lang xa hoi. hieu va ((tham soc) OR (cham soc)) va hanh vi cua tre".
• Adding a wildcard symbol may retrieve word variants: ((de cac) OR (ve cac)) ky lang xa hoi. hieu va ((tham soc) OR (cham soc)) va hanh vi cua tre*.