Perhaps you should try some spelling variations:
giai thanh » gia thanh, gian thanh, giay thanh
cua triet » cua viet, su triet, va triet
thuc giai » thuoc giao, hoc giai, thuc thai
cac thuc » cach thuc, cac thu, can thuc
thanh vi » hanh vi, thanh va, thanh ve
cuu tre » cua tre, cau tren, cau treo
so sach » so sanh, bo sach, co sach
sach ty » sach y, sach tu, sach thu
hieu va » lieu va
nang xa » nang x, lang xa, nang ma
ty nang » ky nang, ty xang, ty hang

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 xa hoi. ((hieu va) OR (hieu qua)) cac thuc giai thanh vi ((cuu tre) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ty nang xa hoi. ((hieu va) OR (hieu qua)) cac thuc giai thanh vi ((cuu tre) OR (cua triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach ty nang xa hoi. ((hieu va) OR (hieu qua)) cac thuc giai thanh vi ((cuu tre) or (cua triet))".
• Adding a wildcard symbol may retrieve word variants: so sach ty nang xa hoi. ((hieu va) OR (hieu qua)) cac thuc giai thanh vi ((cuu tre) or (cua triet))*.