Perhaps you should try some spelling variations:
sach thue » sach thu, sach tham, cach thuc
cau treo » cau theo, cau tren, cau triet
hang xa » hoang xa, hang va, hang ca
ve cham » va cham, vu cham, ve chim
ve chat » va chat, van chat
va doan » va doanh, van doan, va dan
va cau » van cau, va cac, va dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: su ((sach thue) OR (sach thieu)) hang xa hoi. hieu ((ve cham) or (ve chat)) duc va doan va cau treo~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach thue) OR (sach thieu)) hang xa hoi. hieu ((ve cham) OR (ve chat)) duc va doan va cau treo.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((sach thue) OR (sach thieu)) hang xa hoi. hieu ((ve cham) or (ve chat)) duc va doan va cau treo".
• Adding a wildcard symbol may retrieve word variants: su ((sach thue) OR (sach thieu)) hang xa hoi. hieu ((ve cham) or (ve chat)) duc va doan va cau treo*.