Perhaps you should try some spelling variations:
sach tham » sach nha
cau tren » cu tren, dau tren, ca tren
bieu cua » dieu cua, hieu cua, ben cua
va danh » va dinh, va dan, va hanh
cua tre » cua te, cuu tre, cua triet
danh vi » hanh vi, dinh vi, danh di
lang xa » lang ha, dang xay, lang van
cua dam » cua dan, cua dai, cua tam
dam tu » nam tu, cam tu, tam tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: su ((sach y) or (sach tham)) lang xa hoi. bieu cua dam tu va danh vi ((cua tre) or (cau tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach y) OR (sach tham)) lang xa hoi. bieu cua dam tu va danh vi ((cua tre) OR (cau tren)).
• Adding a wildcard symbol may retrieve word variants: su ((sach y) or (sach tham)) lang xa hoi. bieu cua dam tu va danh vi ((cua tre) or (cau tren))*.