Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
lang van » dang van, tang van, hoang van
cham xuc » chat xuc, cham soc, pham duc
cau tren » cu tren, dau tren, ca tren
lang xa » lang ha, dang xay
va xanh » va danh, va hanh, va anh
xanh di » danh di, vanh dai, xanh tai
hieu ve » hieu va, hieu van
sach o » sach lo, sac o, sach y
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 o ((lang xa) OR (lang van)) hoi. hieu ve ((cham xuc) or (cam xuc)) va xanh di cau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach o ((lang xa) OR (lang van)) hoi. hieu ve ((cham xuc) OR (cam xuc)) va xanh di cau tren.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach o ((lang xa) OR (lang van)) hoi. hieu ve ((cham xuc) or (cam xuc)) va xanh di cau tren".
• Adding a wildcard symbol may retrieve word variants: thu sach o ((lang xa) OR (lang van)) hoi. hieu ve ((cham xuc) or (cam xuc)) va xanh di cau tren*.