Perhaps you should try some spelling variations:
sach trien » sach tien, sach tren, sach thieu
trien nang » trien nong, trien mang, thien nang
thanh vi » hanh vi, thanh va, thanh ve
va thanh » gia thanh, ban thanh, va tinh
va cham » va chat, va tham
tu sach » thu sach, su sach, te sach
nang xa » nang x, lang xa, nang ma
cuu tre » cua tre, cau tren, cau treo
xuc va » duc va, tuc va, luc va
va cam » va cac, va cao, va cai
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 trien nang xa hoi. lieu ((va cam) OR (va cham)) xuc va thanh vi ((cua te) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach trien nang xa hoi. lieu ((va cam) OR (va cham)) xuc va thanh vi ((cua te) OR (cuu tre)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach trien nang xa hoi. lieu ((va cam) OR (va cham)) xuc va thanh vi ((cua te) or (cuu tre))".
• Adding a wildcard symbol may retrieve word variants: tu sach trien nang xa hoi. lieu ((va cam) OR (va cham)) xuc va thanh vi ((cua te) or (cuu tre))*.