Perhaps you should try some spelling variations:
hanh tai » thanh tai, hang tai, han tai
cua tre » cua te, cuu tre, cua triet
tai cua » thai cua, tai cuc, tri cua
qua cam » qua cham, qua cac, qua ca
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
luc va » duc va, loc va
tuc va » thuc va, truc va, tuc xa
te bai » te bao, te ban, te lai

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((te bai) or (te tai)) ky lang xa hoi. hieu qua cam ((luc va) OR (tuc va)) hanh tai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te bai) OR (te tai)) ky lang xa hoi. hieu qua cam ((luc va) OR (tuc va)) hanh tai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te bai) or (te tai)) ky lang xa hoi. hieu qua cam ((luc va) OR (tuc va)) hanh tai cua tre".
• Adding a wildcard symbol may retrieve word variants: ((te bai) or (te tai)) ky lang xa hoi. hieu qua cam ((luc va) OR (tuc va)) hanh tai cua tre*.