Perhaps you should try some spelling variations:
truong vao » truong cao, truong dao, truong van
hien hanh » dieu hanh
truong va » truong dai, truong cao, truong dao
cong hung » cong chung, cong huong, cong dung
hung dan » huong dan, dung dan, tung dan
dan than » dan chan, ban than, van than
than cau » toan cau, phan cau, than cap

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 - manh ((truong vao) or (truong va)) cong hung dan than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien hanh - manh ((truong vao) OR (truong va)) cong hung dan than cau.
• Adding a wildcard symbol may retrieve word variants: hoc hien hanh - manh ((truong vao) or (truong va)) cong hung dan than cau*.