Perhaps you should try some spelling variations:
chuong trinh » cong trinh
thuong tinh » khuong tinh, thuong binh, truong tinh
sach nganh » sach ngan, sach tranh, cac nganh
nganh cong » nhanh chong, thanh cong
doi truyen » di truyen, hoi truyen, coi truyen
cong nghi » cuong nghi, cong nghe, nong nghi
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 nghi ((thuong tinh) or (chuong trinh)) doi truyen thong~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach nganh cong nghi ((thuong tinh) OR (chuong trinh)) doi truyen thong.
• Adding a wildcard symbol may retrieve word variants: tu sach nganh cong nghi ((thuong tinh) or (chuong trinh)) doi truyen thong*.