Perhaps you should try some spelling variations:
thien van » thi van
cua triet » cua viet, su triet, va triet
cau treo » cau theo, cau tren, cau triet
van hanh » van thanh, ban hanh, van anh
cuu tre » cua tre, cau tren
te sach » toc sach
duc van » duc va, duc tan, duc manh
van bac » van ban, van bao, van hac
nang xa » nang x, lang xa, nang ma
hanh di » hanh vi, hanh de, hang di
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: te sach y nang xa hoi. thien van bac duc van hanh di ((cua triet) or (((cuu tre) OR (cau treo))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang xa hoi. thien van bac duc van hanh di ((cua triet) OR (((cuu tre) OR (cau treo)))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y nang xa hoi. thien van bac duc van hanh di ((cua triet) or (((cuu tre) OR (cau treo))))".
• Adding a wildcard symbol may retrieve word variants: te sach y nang xa hoi. thien van bac duc van hanh di ((cua triet) or (((cuu tre) OR (cau treo))))*.