Perhaps you should try some spelling variations:
nham thuc » nhan thuc, nam thuc, pham thuc
nham thu » nam thu, pham thu, nhan thuc
sach ha » sach han, sach xa, bach ha
tang xa » trang xa, tang ma, lang xa
xa xanh » xa thanh, cay xanh, mau xanh
xanh di » danh di, vanh dai, xanh tai
di cua » dai cua, doi cua, de cua
cua su » qua su

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

• Performing a fuzzy search may retrieve terms with similar spellings: su ((sach nha) or (sach ha)) tang xa hoi. lieu va ((nham thuc) OR (nham thu)) xa xanh di cua su~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach nha) OR (sach ha)) tang xa hoi. lieu va ((nham thuc) OR (nham thu)) xa xanh di cua su.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((sach nha) or (sach ha)) tang xa hoi. lieu va ((nham thuc) OR (nham thu)) xa xanh di cua su".
• Adding a wildcard symbol may retrieve word variants: su ((sach nha) or (sach ha)) tang xa hoi. lieu va ((nham thuc) OR (nham thu)) xa xanh di cua su*.