Perhaps you should try some spelling variations:
hoang van » hang va
giang day » gian dan
ban hanh » ban hang
va danh » va dinh, va dan, va hanh
vai cua » dai cua, hai cua, lai cua
bo sach » co sach, hoc sach
qua cam » qua cham, qua cac, qua ca
sach tu » sach thu, cach tu, sach ty
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: bo sach tu ((giang day) or (hoang van)) hoi. hieu qua cam xuc ((va danh) or (ban hanh)) vai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: bo sach tu ((giang day) OR (hoang van)) hoi. hieu qua cam xuc ((va danh) OR (ban hanh)) vai cua te.
• Adding a wildcard symbol may retrieve word variants: bo sach tu ((giang day) or (hoang van)) hoi. hieu qua cam xuc ((va danh) or (ban hanh)) vai cua te*.