Perhaps you should try some spelling variations:
vat thanh » dat thanh, gat thanh, tat thanh
cua triet » cua viet, su triet, va triet
chat cua » nhat cua, chat huu, ca cua
thanh le » thinh le, thanh ve, thanh de
te sach » toc sach
nang xa » nang x, lang xa, nang ma
hieu vu » hieu va, hieu su, dieu vu
hieu ve » hieu va, hieu van
y nang » ky nang, ly nang, v nang
le cua » ly cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach y nang xa hoi. ((hieu vu) or (hieu ve)) ((chat cua) OR (chat va)) vat thanh le cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang xa hoi. ((hieu vu) OR (hieu ve)) ((chat cua) OR (chat va)) vat thanh le cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y nang xa hoi. ((hieu vu) or (hieu ve)) ((chat cua) OR (chat va)) vat thanh le cua triet".
• Adding a wildcard symbol may retrieve word variants: te sach y nang xa hoi. ((hieu vu) or (hieu ve)) ((chat cua) OR (chat va)) vat thanh le cua triet*.