Perhaps you should try some spelling variations:
thanh thang » nhanh thang, thanh thanh, thanh hang
hoac chong » hoac khong, hoa cong, hoa khong
chong cong » cong cong, thong cong, cuong cong
tieu sach » chieu sach, dien sach, te sach
hanh hang » thanh hang, hang hang, hanh han
tap doanh » tap doan, lap doanh, tap danh
doanh bat » danh bat, doanh tai, doanh va
cong tap » cuong tap, cong tac, cong tan

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu sach - ((hanh hang) or (thanh thang)) hoac chong cong tap doanh bat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu sach - ((hanh hang) OR (thanh thang)) hoac chong cong tap doanh bat.
• Adding a wildcard symbol may retrieve word variants: theo tieu sach - ((hanh hang) or (thanh thang)) hoac chong cong tap doanh bat*.