Perhaps you should try some spelling variations:
trinh thiet » trinh viet, trinh thi
trinh thuat » trinh luat, trinh thuc, trinh chat
nhung cong » dung cong, thong cong, hang cong
thi chieu » thi chien, thi hieu, theo chieu
cong tinh » cong trinh, cong vinh, long tinh
theo chu » theo chieu, cho chu, chao chu
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: ((theo chu) or (thi chieu)) sach - hanh ((trinh thuat) OR (trinh thiet)) nhung cong tinh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chu) OR (thi chieu)) sach - hanh ((trinh thuat) OR (trinh thiet)) nhung cong tinh toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chu) or (thi chieu)) sach - hanh ((trinh thuat) OR (trinh thiet)) nhung cong tinh toan cau".
• Adding a wildcard symbol may retrieve word variants: ((theo chu) or (thi chieu)) sach - hanh ((trinh thuat) OR (trinh thiet)) nhung cong tinh toan cau*.