Perhaps you should try some spelling variations:
hoc thieu » hoc hien
hanh dinh » thanh dinh, hinh dinh, hanh tinh
dung cong » dung trong
dinh cuu » dinh chi
cuu dung » cu dung, cuu ung, huu dung
cong van » cong vang, cong san, song van
toan cau » toan cao, toan tap, toan tai
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 thieu) or (toc thieu)) tinh - hanh dinh cuu dung cong van ((toan cau) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (toc thieu)) tinh - hanh dinh cuu dung cong van ((toan cau) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) or (toc thieu)) tinh - hanh dinh cuu dung cong van ((toan cau) or (toan ban))*.