Perhaps you should try some spelling variations:
cua triet » su triet, va triet
cach thue » cach thuc, sach thue, cach thien
thue gia » phu gia
thanh vi » hanh vi, thanh va, thanh ve
cua viet » ca viet, hoa viet, cua vat
so sach » so sanh, bo sach, co sach
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
va cach » va cac
cua tre » cua te, cuu tre, dua tren
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: so sach y nang xa hoi. hieu va cach thue gia thanh vi ((cua tre) or (((cua triet) OR (cua viet))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach y nang xa hoi. hieu va cach thue gia thanh vi ((cua tre) OR (((cua triet) OR (cua viet)))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach y nang xa hoi. hieu va cach thue gia thanh vi ((cua tre) or (((cua triet) OR (cua viet))))".
• Adding a wildcard symbol may retrieve word variants: so sach y nang xa hoi. hieu va cach thue gia thanh vi ((cua tre) or (((cua triet) OR (cua viet))))*.