Perhaps you should try some spelling variations:
thanh doi » thanh loi, thanh moi, thanh do
ban thanh » ban hanh, ban hang
thu sach » tu sach, thuat sach, thuoc sach
cham duc » pham duc, cham soc, pham duy
dau tren » dau tien, dau tieng, dau trong
dat tren » dat trong, dua tren
nang xa » nang x, lang xa, nang ma
hieu vu » hieu va, hieu ve, hieu su
vu cham » va cham, vu kham, tu cham
duc ban » duc tan, duc van, dua ban
sach v » sach va, sach y, sach 2
v nang » va nang, vu nang, van nang

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach v nang xa hoi. hieu vu cham duc ban thanh doi ((dau tren) OR (dat tren))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach v nang xa hoi. hieu vu cham duc ban thanh doi ((dau tren) OR (dat tren))".
• Adding a wildcard symbol may retrieve word variants: thu sach v nang xa hoi. hieu vu cham duc ban thanh doi ((dau tren) OR (dat tren))*.