Perhaps you should try some spelling variations:
thuat hoa » thuat toan, thuyet hoa, thuat do
van pham » san pham, van phan, van phat
chat hoa » chat va, chat huu, cau hoa
hieu van » hieu va, thien van, lieu va
van anh » van thanh, tuan anh, van minh
duc van » duc va, duc tan, duc manh
te sach » toc sach
cao hoi » cau hoi, co hoi, cao hoc
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, ly nang, v nang
anh vi » hanh vi, anh va, anh ve
vi cua » vai cua, di 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 ((cao hoi) or (((chat hoa) OR (thuat hoa)))). hieu van pham duc van anh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang ((cao hoi) OR (((chat hoa) OR (thuat hoa)))). hieu van pham duc van anh vi cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y nang ((cao hoi) or (((chat hoa) OR (thuat hoa)))). hieu van pham duc van anh vi cua tre".
• Adding a wildcard symbol may retrieve word variants: te sach y nang ((cao hoi) or (((chat hoa) OR (thuat hoa)))). hieu van pham duc van anh vi cua tre*.