Perhaps you should try some spelling variations:
cau tren » cu tren, dau tren, ca tren
cuu tre » cua tre, cau treo
hanh va » hang va, hanh vi
tu sach » thu sach, su sach, te sach
ve chat » va chat, van chat
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
xuc va » duc va, luc va, xac va
y nang » ky nang, ly nang, v nang
tuc va » thuc va, truc va, tuc xa

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 nang xa hoi. hieu ve chat ((xuc va) or (tuc va)) hanh va ((cuu tre) OR (cau tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y nang xa hoi. hieu ve chat ((xuc va) OR (tuc va)) hanh va ((cuu tre) OR (cau tren)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y nang xa hoi. hieu ve chat ((xuc va) or (tuc va)) hanh va ((cuu tre) OR (cau tren))".
• Adding a wildcard symbol may retrieve word variants: tu sach y nang xa hoi. hieu ve chat ((xuc va) or (tuc va)) hanh va ((cuu tre) OR (cau tren))*.