Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
cham cuu » cap cuu, chat cua
nang xa » nang x, lang xa, mang xa
nang ma » tang ma, sang ma, nang cao
va cham » va chat, va tham
va danh » va dinh, va dan, va hanh
danh va » doanh va, hanh va, anh va
cu tren » tu tren, dua tren
cuu va » cuu van, cuu ve
va cu » va cau, va chu, va su

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 ((nang xa) or (nang ma)) hoi. lieu va cham cuu va danh va cu tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach y ((nang xa) OR (nang ma)) hoi. lieu va cham cuu va danh va cu tren*.