Perhaps you should try some spelling variations:
hanh giau » thanh gian, danh gia, anh giao
sach thu » sach thue, sach thieu, sach tham
va hanh » van hanh, va thanh, va danh
cua tre » cua te, cua triet, dua tren
cac tuc » cac toc, cac tu, cac tac
sach ty » sach y, sach tu, xach tay
lang xa » lang ha, dang xay, lang van
cuu tre » cau tren, cau treo
tuc va » thuc va, truc va, tuc xa

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc ((sach ty) or (sach thu)) lang xa hoi. lieu va cac tuc va hanh giau ((cua tre) OR (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc ((sach ty) OR (sach thu)) lang xa hoi. lieu va cac tuc va hanh giau ((cua tre) OR (cuu tre)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc ((sach ty) or (sach thu)) lang xa hoi. lieu va cac tuc va hanh giau ((cua tre) OR (cuu tre))".
• Adding a wildcard symbol may retrieve word variants: toc ((sach ty) or (sach thu)) lang xa hoi. lieu va cac tuc va hanh giau ((cua tre) OR (cuu tre))*.