Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
nganh cong » nhanh chong, thanh cong
thong tinh » thuong tinh, thong tin, thong minh
va truyen » hoa truyen, co truyen, di truyen
hoc sach » hoc sinh, hoc anh
hoc cac » hoc cao
cong he » cong che, cong ha, cong de
tinh va » tich va, trinh van, trinh vat

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

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