Perhaps you should try some spelling variations:
hien hanh » dieu hanh
truong va » truong dai, truong cao, truong dao
lang cong » dang cong, bang cong, hang cong
cong manh » cong danh, duong manh, cong thanh
manh toan » thanh toan, anh tuan, tinh toan
tuong va » thuong va, luong va, duong va
toan tap » toan ban

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 - thanh ((tuong va) or (truong va)) lang cong manh toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien hanh - thanh ((tuong va) OR (truong va)) lang cong manh toan tap.
• Adding a wildcard symbol may retrieve word variants: hoc hien hanh - thanh ((tuong va) or (truong va)) lang cong manh toan tap*.