Perhaps you should try some spelling variations:
phuong cong » phuong dong, phong cong, phung cong
nhieu tang » chieu sang, hieu lang, nhiet nang
hoc nhieu » hoc thieu, hoc nhiet, hop nhieu
hanh hang » thanh hang, hang hang, hanh han
va phuong » va thuong, cac phuong
van tuan » van quan, van ban, anh tuan
ban hanh » ban hang

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc nhieu tang - hanh hang va phuong cong ((van tuan) or (ban hanh)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc nhieu tang - hanh hang va phuong cong ((van tuan) OR (ban hanh)) ban.
• Adding a wildcard symbol may retrieve word variants: hoc nhieu tang - hanh hang va phuong cong ((van tuan) or (ban hanh)) ban*.