Perhaps you should try some spelling variations:
thien van » thi van
dua tren » dung tren
ban hanh » ban hang
van lam » van nam
lam xuc » cam xuc, lam duoc
xuc ban » duc ban, cuc ban, quoc ban
cuu tre » cua tre, cau tren, cau treo
cu tren » tu tren
tu sach » thu sach, su sach, te sach
y nang » ky nang, ly nang, v nang
x hoi » xa hoi, o hoi, x ho

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 x hoi. thien van lam xuc ban hanh vi ((cuu tre) or (((cu tren) OR (dua tren))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y nang x hoi. thien van lam xuc ban hanh vi ((cuu tre) OR (((cu tren) OR (dua tren)))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y nang x hoi. thien van lam xuc ban hanh vi ((cuu tre) or (((cu tren) OR (dua tren))))".
• Adding a wildcard symbol may retrieve word variants: tu sach y nang x hoi. thien van lam xuc ban hanh vi ((cuu tre) or (((cu tren) OR (dua tren))))*.