Perhaps you should try some spelling variations:
sach thi » sach thu, sach tai, sach thieu
thi cong » tai cong, thien cong
gia hanh » gia thanh, giao hanh, gia anh
cau treo » cau theo, cau tren, cau triet
su sach » so sach, vu sach
cong xa » cong xay, cong xua, cong ha
hanh ve » hanh vi, hanh va, hanh kem
ve cac » vien cac
du gia » duc gia, dau gia, vu gia
ve cau » ke cau, va cau, le cau

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 thi cong xa hoi. hieu ((ve cac) or (va cac)) du gia hanh ve cau treo~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach thi cong xa hoi. hieu ((ve cac) OR (va cac)) du gia hanh ve cau treo.
• Adding a wildcard symbol may retrieve word variants: su sach thi cong xa hoi. hieu ((ve cac) or (va cac)) du gia hanh ve cau treo*.