Perhaps you should try some spelling variations:
chat truc » cau truc, chat xuc
van chat » cao chat
hieu van » hieu va, thien van, lieu va
cua tre » cua te, cuu tre, cua triet
va hanh » van hanh, va thanh, va danh
truc va » thuc va, thuc vat, trung va
nang xa » nang x, lang xa, nang ma
sang ma » tang ma, nang ma, sang tao
vi cua » vai cua, di cua
su sai » su hai, su dai, su mai
su tai » su thi, tu tai

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((su sai) OR (su tai)) ky ((nang xa) or (sang ma)) hoi. hieu van chat truc va hanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sai) OR (su tai)) ky ((nang xa) OR (sang ma)) hoi. hieu van chat truc va hanh vi cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sai) OR (su tai)) ky ((nang xa) or (sang ma)) hoi. hieu van chat truc va hanh vi cua tre".
• Adding a wildcard symbol may retrieve word variants: ((su sai) OR (su tai)) ky ((nang xa) or (sang ma)) hoi. hieu van chat truc va hanh vi cua tre*.