Perhaps you should try some spelling variations:
ky trong » ly trong, ke trong, cay trong
van hanh » van thanh, ban hanh, van anh
tu sach » thu sach, su sach, te sach
y trong » ly trong, _ trong, a trong
hieu ve » hieu va, hieu van
xuc van » duc van, luc van, vuc van
cuu tre » cua tre, cau tren, cau treo
ve cam » ve cham, ve cac, va cam
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ((y trong) OR (ky trong)) xa hoi. hieu ve cam xuc van hanh vi ((cua te) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((y trong) OR (ky trong)) xa hoi. hieu ve cam xuc van hanh vi ((cua te) OR (cuu tre)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((y trong) OR (ky trong)) xa hoi. hieu ve cam xuc van hanh vi ((cua te) or (cuu tre))".
• Adding a wildcard symbol may retrieve word variants: tu sach ((y trong) OR (ky trong)) xa hoi. hieu ve cam xuc van hanh vi ((cua te) or (cuu tre))*.