Perhaps you should try some spelling variations:
van quang » van quan, tran quang, van tuan
dang hanh » dang thanh, ban hanh, dang van
thuc dang » thuoc dang, thuc dan, thuc dung
quang xa » quan xa, quang ma, quang va
tu sach » thu sach, su sach, te sach
va cham » va chat, va tham
vu sach » vu bach, su sach, vu khach
vi cua » vai cua, di cua
ve cac » va cac, vien cac
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) or (vu sach)) van quang xa hoi. hieu ((ve cac) or (va cham)) thuc dang hanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (vu sach)) van quang xa hoi. hieu ((ve cac) OR (va cham)) thuc dang hanh vi cua te.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (vu sach)) van quang xa hoi. hieu ((ve cac) or (va cham)) thuc dang hanh vi cua te*.