Perhaps you should try some spelling variations:
hanh tai » thanh tai, hang tai, han tai
cuc tre » duc tre, cua tre, cuc thue
ta hanh » ta thanh, va hanh, tu hanh
cac toc » cac toi, cac nuoc, cac thoi
hieu va » lieu va, hieu qua
hang xa » hoang xa, hang va, hang ca
cuu tre » cua tre, cau tren, cau treo
cac ly » cac ky, cac le, cap ly
toc ta » toc tay, toc thai
cam ly » tam ly, cam ky, cam lo

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((cac ly) OR (cam ly)) hang xa hoi. hieu va cac toc ta hanh tai ((cuc tre) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((cac ly) OR (cam ly)) hang xa hoi. hieu va cac toc ta hanh tai ((cuc tre) OR (cuu tre)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((cac ly) OR (cam ly)) hang xa hoi. hieu va cac toc ta hanh tai ((cuc tre) or (cuu tre))".
• Adding a wildcard symbol may retrieve word variants: hoc ((cac ly) OR (cam ly)) hang xa hoi. hieu va cac toc ta hanh tai ((cuc tre) or (cuu tre))*.