Perhaps you should try some spelling variations:
thanh hai » thanh phan, thanh hoa, thanh san
cua triet » cua viet, su triet
toc sach » hoc sach, doc sach, thuoc sach
va triet » va thiet, va trien, ve triet
nang xa » nang x, lang xa, nang ma
hieu va » hieu qua
cac xuc » cam xuc, cac nuoc, chat xuc
xuc gia » duc gia, luc gia, tuc gia
y nang » ky nang, ly nang, v nang

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc sach y nang xa hoi. ((lieu va) or (hieu va)) cac xuc gia thanh hai ((cua triet) or (va triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach y nang xa hoi. ((lieu va) OR (hieu va)) cac xuc gia thanh hai ((cua triet) OR (va triet)).
• Adding a wildcard symbol may retrieve word variants: toc sach y nang xa hoi. ((lieu va) or (hieu va)) cac xuc gia thanh hai ((cua triet) or (va triet))*.