Perhaps you should try some spelling variations:
qua tham » qua cham, qua than, qua thanh
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
cua tre » cuu tre, cua triet, dua tren
te cac » tu cac, ve cac, te cao
loc va » hoc va
luc va » duc va, tuc va
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: te cac ky lang xa hoi. hieu qua tham ((loc va) OR (luc va)) hanh vi ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te cac ky lang xa hoi. hieu qua tham ((loc va) OR (luc va)) hanh vi ((cua tre) OR (cua te)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te cac ky lang xa hoi. hieu qua tham ((loc va) OR (luc va)) hanh vi ((cua tre) or (cua te))".
• Adding a wildcard symbol may retrieve word variants: te cac ky lang xa hoi. hieu qua tham ((loc va) OR (luc va)) hanh vi ((cua tre) or (cua te))*.