Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
cong thanh » dong thanh, cong trinh, cong tan
thanh toan » thanh hoa, thanh san, tinh toan
hoc dieu » hoc thieu, hoc hien
tung cua » trung cua, tuong cua, tang cua
mang cua » manh cua, ban cua, cong cua
dung cua » dung luan, dung cho
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 dieu hanh - thanh ((((tung cua) or (mang cua))) or (dung cua)) nhung cong thanh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc dieu hanh - thanh ((((tung cua) OR (mang cua))) OR (dung cua)) nhung cong thanh toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc dieu hanh - thanh ((((tung cua) or (mang cua))) or (dung cua)) nhung cong thanh toan cau*.