Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
xanh di » danh di, vanh dai, xanh tai
va xanh » va danh, va hanh, va anh
cau loc » hau loc, cau hoc, cau luc
cau tre » cau tren, cau treo, cau tra
thi van » thi lan, thi hanh, thi nang
van hoe » van hoa, van hoc, van hieu
y lang » o lang, tay lang, yen lang
loc va » hoc va, luc va
_ lang » o lang, _ land
di cau » da cau, diem cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach ((y lang) or (_ lang)) van hoe. ((thien van) OR (thi van)) cau loc va xanh di cau tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ((y lang) OR (_ lang)) van hoe. ((thien van) OR (thi van)) cau loc va xanh di cau tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ((y lang) or (_ lang)) van hoe. ((thien van) OR (thi van)) cau loc va xanh di cau tre".
• Adding a wildcard symbol may retrieve word variants: thu sach ((y lang) or (_ lang)) van hoe. ((thien van) OR (thi van)) cau loc va xanh di cau tre*.