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