Perhaps you should try some spelling variations:
cua thuong » cua truong, cua phuong, ca thuong
hien hanh » dieu hanh
hanh hinh » hanh chinh, hanh tinh, hanh dinh
cua thong » cua khong, cua tong, suat thong
thong van » trong van, thong va, thong quan
van tan » van tuan, van ban, van tai
tan cau » toan cau, van cau, tan ca

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 thong) OR (cua thuong)) thong van tan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien hanh) OR (trieu tinh)) - hanh hinh ((cua thong) OR (cua thuong)) thong van tan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien hanh) or (trieu tinh)) - hanh hinh ((cua thong) OR (cua thuong)) thong van tan cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien hanh) or (trieu tinh)) - hanh hinh ((cua thong) OR (cua thuong)) thong van tan cau*.