Perhaps you should try some spelling variations:
dua tren » dung tren
van hanh » van thanh, ban hanh, van anh
te sach » toc sach
cua tre » cua te, cua triet, cua thep
hanh di » hanh vi, hanh de, hang di
xuc van » duc van, luc van, xuc ban
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
cuu tre » cau tren, cau treo
ve cam » ve cham, ve cac, va cam
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. hieu ve cam xuc van hanh di ((((cua tre) OR (dua tren))) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang xa hoi. hieu ve cam xuc van hanh di ((((cua tre) OR (dua tren))) OR (cuu tre)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y nang xa hoi. hieu ve cam xuc van hanh di ((((cua tre) OR (dua tren))) or (cuu tre))".
• Adding a wildcard symbol may retrieve word variants: te sach y nang xa hoi. hieu ve cam xuc van hanh di ((((cua tre) OR (dua tren))) or (cuu tre))*.