Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
va trien » va truyen, va thiet, va tuyen
nano tio » nano giao, nang tin, nano cuo
hieu vu » hieu va, hieu ve, hieu su
dinh cu » dinh cuu, dinh chuc, dinh chau
sach tu » sach thu, cach tu, sach ty
vu kham » vu khanh
xuc va » duc va, tuc va, xac va
luc va » duc va, tuc va, loc va
nano 1 » nano o
cu va » cuu va, tu va, su va

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuoc sach tu ((nano tio) or (nano 1)) ho. hieu vu kham ((xuc va) OR (luc va)) dinh cu va trien~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc sach tu ((nano tio) OR (nano 1)) ho. hieu vu kham ((xuc va) OR (luc va)) dinh cu va trien.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuoc sach tu ((nano tio) or (nano 1)) ho. hieu vu kham ((xuc va) OR (luc va)) dinh cu va trien".
• Adding a wildcard symbol may retrieve word variants: thuoc sach tu ((nano tio) or (nano 1)) ho. hieu vu kham ((xuc va) OR (luc va)) dinh cu va trien*.