Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
trung tuan » trung thanh, trung tam, tran tuan
truong cua » truong ca, truong quan, truong cao
thong cong » trong cong, tong cong, thong thong
hoc chieu » hoc thieu, ho chieu, hoc hien
trung cua » trung cap, dung cua, thong cua
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc chieu sach - manh ((((trung cua) OR (trung tuan))) or (truong cua)) thong cong tac toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu sach - manh ((((trung cua) OR (trung tuan))) OR (truong cua)) thong cong tac toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chieu sach - manh ((((trung cua) OR (trung tuan))) or (truong cua)) thong cong tac toan cau".
• Adding a wildcard symbol may retrieve word variants: hoc chieu sach - manh ((((trung cua) OR (trung tuan))) or (truong cua)) thong cong tac toan cau*.