Perhaps you should try some spelling variations:
lang khoa » hang khoa, dang khoa, long khoa
khoa hoi » khoan hoi, khoa hoc, khoa doi
cham xuc » cam xuc, chat xuc, cham soc
thanh le » thinh le, thanh de, thanh liem
thanh ve » hanh ve, thanh va, thanh vien
tu sach » thu sach, su sach, te sach
sach ty » sach y, sach tu, sach thu
ty lang » tay lang, ty xang, ty hang
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
xuc ban » duc ban, cuc ban, quoc ban

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 ty lang khoa hoi. hieu ve cham xuc ban ((thanh le) or (thanh ve)) cua vat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty lang khoa hoi. hieu ve cham xuc ban ((thanh le) OR (thanh ve)) cua vat.
• Adding a wildcard symbol may retrieve word variants: tu sach ty lang khoa hoi. hieu ve cham xuc ban ((thanh le) or (thanh ve)) cua vat*.