Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
hoc thieu » toc thieu
trinh han » trinh quan
dung dong » dung cong, vung dong, dung trong
dong quan » duong quan, dong quang, dung quan
han dung » chan dung, han duong, hanh dung
luan thu » luan thuc, tuan thu, lan thu

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) or (hoc thieu)) lang - hanh trinh han dung dong quan luan thu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc hien) OR (hoc thieu)) lang - hanh trinh han dung dong quan luan thu.
• Adding a wildcard symbol may retrieve word variants: ((hoc hien) or (hoc thieu)) lang - hanh trinh han dung dong quan luan thu*.