Perhaps you should try some spelling variations:
hoc thuyet » hoc chuyen
hanh trung » thanh trung, hanh trang, manh trung
hoc thiet » hoc thieu, hoc hien, toc thieu
trung cua » truong cua, trung tuan, trung cap
hang cong » dang cong, hang nong, bang cong
cua hang » cua dang, cua nhung, cua cong
cong san » cong tac
toan ban » van 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 thiet) or (hoc thuyet)) danh - hanh trung cua hang cong san ((toan tap) OR (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thiet) OR (hoc thuyet)) danh - hanh trung cua hang cong san ((toan tap) OR (toan ban))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc thiet) or (hoc thuyet)) danh - hanh trung cua hang cong san ((toan tap) OR (toan ban))*".