Perhaps you should try some spelling variations:
tu sach » thu sach, su sach, te sach
sach ty » sach y, sach tu, sach thu
ty nano » tu nano, day nano, tao nano
nano xa » nano va, nano bac, nano cau
truc va » thuc va, thuc vat, trung va
va danh » va dinh, va dan, va hanh
danh vi » hanh vi, dinh vi, danh di
ve cai » va cai, ve cac, ve tai
vi cua » vai cua, di cua
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ty nano xa hoi. hieu ((ve cai) or (va cac)) truc va danh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty nano xa hoi. hieu ((ve cai) OR (va cac)) truc va danh vi cua te*.