Perhaps you should try some spelling variations:
truong doi » truong dai, trong doi, truong hoi
xa truong » cac truong
cau treo » cau theo, cau tren, cau triet
cam tuc » cam xuc, cam tu, nam thuc
cuu tre » cua tre, cau tren
bo sach » co sach, hoc sach
sach ty » sach y, sach tu, sach thu
hieu va » hieu qua
ty nang » ky nang, ty xang, ty hang
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: bo sach ty nang x hoi. ((hieu va) or (lieu va)) cam tuc xa truong doi ((cuu tre) OR (cau treo))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: bo sach ty nang x hoi. ((hieu va) OR (lieu va)) cam tuc xa truong doi ((cuu tre) OR (cau treo)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "bo sach ty nang x hoi. ((hieu va) or (lieu va)) cam tuc xa truong doi ((cuu tre) OR (cau treo))".
• Adding a wildcard symbol may retrieve word variants: bo sach ty nang x hoi. ((hieu va) or (lieu va)) cam tuc xa truong doi ((cuu tre) OR (cau treo))*.