Perhaps you should try some spelling variations:
nuoc sach » nguoi sach, hoc sach, cuoc cach
dinh cua » dinh cuu, sinh cua, tinh cua
truc va » thuc va, thuc vat, trung va
tu nang » tru nang, tu nong, tu nano
dinh cu » dinh cuu, dinh chuc, dinh chau
sach tu » sach thu, cach tu, sach ty
va danh » va dinh, va dan, va hanh
ve cac » va cac, vien cac
ve cau » ke cau, va cau, le cau
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: nuoc sach tu nang x hoi. hieu ((ve cau) or (ve cac)) truc va danh ((dinh cua) OR (dinh cu)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: nuoc sach tu nang x hoi. hieu ((ve cau) OR (ve cac)) truc va danh ((dinh cua) OR (dinh cu)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "nuoc sach tu nang x hoi. hieu ((ve cau) or (ve cac)) truc va danh ((dinh cua) OR (dinh cu)) tre".
• Adding a wildcard symbol may retrieve word variants: nuoc sach tu nang x hoi. hieu ((ve cau) or (ve cac)) truc va danh ((dinh cua) OR (dinh cu)) tre*.