Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
dau tren » dau tien, dau tieng, dau trong
thanh ve » hanh ve, thanh va, thanh vien
va thanh » gia thanh, ban thanh, va tinh
dat tren » dat trong, dua tren
nang doc » nang luc
ve chat » va chat, van chat
doc hoc » duoc hoc, toc hoc, duc hoc
va cham » va chat, va tham
y nang » ky nang, ly nang, v nang
luc va » duc va, tuc va, loc va

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 y nang doc hoc. hieu ((ve chat) or (va cham)) luc va thanh ve ((dau tren) or (dat tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach y nang doc hoc. hieu ((ve chat) OR (va cham)) luc va thanh ve ((dau tren) OR (dat tren)).
• Adding a wildcard symbol may retrieve word variants: thu sach y nang doc hoc. hieu ((ve chat) or (va cham)) luc va thanh ve ((dau tren) or (dat tren))*.