Perhaps you should try some spelling variations:
nguoi nung » nguoi muong, nguoi nuoc
nung thanh » nhung thanh, nang thanh, dung thanh
thanh tien » thanh vien, thanh nien, thang tien
sach thue » sach thu, sach thieu, sach tham
tu khach » vu khach, tu hach, cua khach
giai con » gian con, giai doan, giao cong
con hong » con song, cong thong, cong khong
hong tin » thong tin, hong tien, dong tin
thu sach » tu sach, thuat sach, thuoc sach
me nguoi » ma nguoi, le nguoi, ke nguoi
thue me » thue ke, thue che, thue mua
hang » nang, dang, bang

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( tu khach hang va giai con hong tin ) or ( thu sach thue me nguoi nung thanh tien ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tu khach hang va giai con hong tin ) OR ( thu sach thue me nguoi nung thanh tien )).
• Adding a wildcard symbol may retrieve word variants: (( tu khach hang va giai con hong tin ) or ( thu sach thue me nguoi nung thanh tien ))*.