Perhaps you should try some spelling variations:
lang khoa » hang khoa, dang khoa, long khoa
khoa hoi » khoan hoi, khoa hoc, khoa doi
ban tinh » ban thanh, quan tinh, ban hanh
tinh voi » trinh voi, tinh doi, binh voi
tu sach » thu sach, su sach, te sach
ve cham » va cham, ve chat, vu cham
cuc ban » cua ban, cac ban, cuu ban
voi cua » hoi cua, doi cua, moi cua
y lang » o lang, _ lang, tay lang
ve cam » ve cac, va cam, ve 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 y lang khoa hoi. hieu ((ve cam) or (ve cham)) cuc ban tinh voi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y lang khoa hoi. hieu ((ve cam) OR (ve cham)) cuc ban tinh voi cua te.
• Adding a wildcard symbol may retrieve word variants: tu sach y lang khoa hoi. hieu ((ve cam) or (ve cham)) cuc ban tinh voi cua te*.