Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
hoc thiet » hoc thuyet, hoc hien, toc thieu
hoc thieu » toc thieu, hoc hien
trinh cua » tinh cua, trinh luat, trinh quan
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 thieu)) hach - hanh trinh 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 thieu)) hach - hanh trinh 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 thieu)) hach - hanh trinh cua hang cong san ((toan tap) OR (toan ban))".
• Adding a wildcard symbol may retrieve word variants: ((hoc thiet) or (hoc thieu)) hach - hanh trinh cua hang cong san ((toan tap) OR (toan ban))*.