Perhaps you should try some spelling variations:
cau tren » cu tren, dau tren, ca tren
sach thu » sach thue, sach thieu, sach tham
thu nang » thi nang, thu hang, thu bang
ban hanh » ban hang
cuu tre » cua tre, cau treo
hanh di » hanh vi, hanh de, hang di
cuc ban » cua ban, cac ban, cuu ban
te sach » toc sach
cam cuc » cam xuc, cham cuu, pham cuc
va cam » va cham, va cac, va cao
ma hoi » mai hoi, ma hoa, me hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach thu nang ((ma hoi) or (xa hoi)). lieu va cam cuc ban hanh di ((cuu tre) OR (cau tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach thu nang ((ma hoi) OR (xa hoi)). lieu va cam cuc ban hanh di ((cuu tre) OR (cau tren)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach thu nang ((ma hoi) or (xa hoi)). lieu va cam cuc ban hanh di ((cuu tre) OR (cau tren))".
• Adding a wildcard symbol may retrieve word variants: te sach thu nang ((ma hoi) or (xa hoi)). lieu va cam cuc ban hanh di ((cuu tre) OR (cau tren))*.