Perhaps you should try some spelling variations:
truong doi » truong dai, trong doi, truong hoi
xa truong » cac truong
so sach » so sanh, bo sach, co sach
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
hieu va » lieu va, hieu qua
cam tuc » cam xuc, cam tu, nam thuc
ca tren » cau tren, cu tren, la tren
co hoi » co hoc, co loi
va cam » va cham, va cac, va cao
doi ca » doi cua, doi cay, duoi ca
x hoi » xa hoi, x ho, 5 hoi
o hoi » o hoc, o hai, o hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach ty nang ((x hoi) or (((o hoi) or (co hoi)))). hieu va cam tuc xa truong doi ca tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ty nang ((x hoi) OR (((o hoi) OR (co hoi)))). hieu va cam tuc xa truong doi ca tren.
• Adding a wildcard symbol may retrieve word variants: so sach ty nang ((x hoi) or (((o hoi) or (co hoi)))). hieu va cam tuc xa truong doi ca tren*.