Perhaps you should try some spelling variations:
khong thong » thong thong, khong trong, thong thuong
hien hanh » dieu hanh
hanh hinh » hanh chinh, hanh tinh, hanh dinh
cua khong » hua khong, cua phuong, cua thuong
hinh cua » chinh cua, sinh cua, tinh cua
van toan » van tan, van thanh, manh toan
van tuan » van quan, van ban, anh tuan

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hien hanh) or (trieu tinh)) - hanh hinh cua khong thong ((van toan) or (van tuan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien hanh) OR (trieu tinh)) - hanh hinh cua khong thong ((van toan) OR (van tuan)) cau.
• Adding a wildcard symbol may retrieve word variants: hoc ((hien hanh) or (trieu tinh)) - hanh hinh cua khong thong ((van toan) or (van tuan)) cau*.