Perhaps you should try some spelling variations:
nhanh chong » thanh cong, khanh phong
thuong tinh » khuong tinh, truong tinh, thuong tin
thuong binh » phuong binh
nganh cong » thanh cong
di truyen » co truyen
tu sach » thu sach, su sach, te sach
thong » trong

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 ((nganh cong) or (nhanh chong)) nghe ((thuong tinh) OR (thuong binh)) di truyen thong~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((nganh cong) OR (nhanh chong)) nghe ((thuong tinh) OR (thuong binh)) di truyen thong.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((nganh cong) or (nhanh chong)) nghe ((thuong tinh) OR (thuong binh)) di truyen thong".
• Adding a wildcard symbol may retrieve word variants: tu sach ((nganh cong) or (nhanh chong)) nghe ((thuong tinh) OR (thuong binh)) di truyen thong*.