Perhaps you should try some spelling variations:
khien tinh » thien tinh, khien thich, bien tinh
hung vuong » hoang vuong
vuong lanh » vuong anh, vuong linh, tuong lanh
hoc khien » hoc hien, hoc nghien, hoc thieu
luan phan » luan hoan
tranh va » tranh van, trang va, trinh va
va hung » va nhung, van hung, va huong

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc khien tinh - canh tranh va hung vuong lanh ((luan van) or (luan phan))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc khien tinh - canh tranh va hung vuong lanh ((luan van) OR (luan phan)).
• Adding a wildcard symbol may retrieve word variants: hoc khien tinh - canh tranh va hung vuong lanh ((luan van) or (luan phan))*.