Perhaps you should try some spelling variations:
manh hanh » xanh hanh, danh thanh, minh thanh
sach bai » sach dao, cac bai, sach xa
duc manh » suc manh, duc anh, duc minh
cac duc » cac du, cao duc, cac dac
sach ki » sach kinh, sach kem, sach doi
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
di cua » dai cua, doi cua, do cua
de cua » le cua, te cua, dieu cua
ve cac » va cac, vien cac

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

• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach ki) OR (sach bai)) nang xa hoi. hieu ve cac duc manh hanh ((di cua) OR (de cua)) chu~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach ki) or (sach bai)) nang xa hoi. hieu ve cac duc manh hanh ((di cua) OR (de cua)) chu~".
• Adding a wildcard symbol may retrieve word variants: te ((sach ki) or (sach bai)) nang xa hoi. hieu ve cac duc manh hanh ((di cua) OR (de cua)) chu*.