Perhaps you should try some spelling variations:
thuong tinh » khuong tinh, thuong binh, truong tinh
nganh cong » nhanh chong, thanh cong
thong tinh » thong tin, thong minh, trong tinh
thuoc cac » thuoc cuc, thuoc cao, thuoc sach
thuoc dac » thuoc dang, thuoc sach, thuc dan
va truyen » hoa truyen, co truyen, di truyen

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((thuoc cac) or (thuoc dac)) nganh cong nghe ((thong tinh) OR (thuong tinh)) va truyen thong~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thuoc cac) OR (thuoc dac)) nganh cong nghe ((thong tinh) OR (thuong tinh)) va truyen thong.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thuoc cac) or (thuoc dac)) nganh cong nghe ((thong tinh) OR (thuong tinh)) va truyen thong".
• Adding a wildcard symbol may retrieve word variants: ((thuoc cac) or (thuoc dac)) nganh cong nghe ((thong tinh) OR (thuong tinh)) va truyen thong*.