Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
cau treo » cau theo, cau tren, cau triet
sach ty » sach y, sach tu, sach thu
xang xa » lang xa, mang xa, ang xa
vu hanh » vu khanh, vu thanh, du hanh
hanh va » hang va, hanh vi
ve cau » ke cau, ve cai
le cau » ke cau, le mau, le cap
va cau » van cau, va cac, va dau
ve cac » va cac, vien cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat sach ty xang xa hoi. hieu ((((ve cau) OR (ve cac))) or (le cau)) phuc vu hanh va cau treo~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach ty xang xa hoi. hieu ((((ve cau) OR (ve cac))) OR (le cau)) phuc vu hanh va cau treo*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat sach ty xang xa hoi. hieu ((((ve cau) OR (ve cac))) or (le cau)) phuc vu hanh va cau treo*".