Perhaps you should try some spelling variations:
thien thanh » tien thanh, thi thanh, hien hanh
hanh truong » hanh trong, anh truong, manh truong
cua thong » cua thuong, cua tong, suat thong
cua khong » hua khong, cua phuong, cua thuong
duong van » duong va, luong va, dang van
van tuan » van quan, van ban, anh tuan
tuan tap » toan tap, tuan tai, tuyen 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) or (thien thanh)) - hanh truong ((cua thong) or (cua khong)) duong van tuan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((dieu hanh) OR (thien thanh)) - hanh truong ((cua thong) OR (cua khong)) duong van tuan tap.
• Adding a wildcard symbol may retrieve word variants: hoc ((dieu hanh) or (thien thanh)) - hanh truong ((cua thong) or (cua khong)) duong van tuan tap*.