Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
ban thanh » ban hanh, ban hang
kham chua » kham pha
hai chua » hai cua, hai chu, chay chua
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
luc ban » duc ban, cuc ban, luc bat
y nang » ky nang, ly nang, v nang
ve coc » ve cuoc, ve cac, ve co

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuoc sach y nang xa hoi. hieu ve coc luc ban thanh ((hai chua) OR (kham chua)) tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuoc sach y nang xa hoi. hieu ve coc luc ban thanh ((hai chua) OR (kham chua)) tre".
• Adding a wildcard symbol may retrieve word variants: thuoc sach y nang xa hoi. hieu ve coc luc ban thanh ((hai chua) OR (kham chua)) tre*.