Perhaps you should try some spelling variations:
thanh tung » thanh cong
nhung cong » dung cong, thong cong, hang cong
cua nhung » va nhung
manh toan » thanh toan, anh tuan, tinh toan
hoc hieu » hoc thieu, hoc hien, doc hieu
dan than » dan chan, ban than, van than
hieu va » lieu va, hieu qua

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hieu va - ((thanh trung) OR (thanh tung)) cua nhung cong ((manh toan) or (dan than)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu va - ((thanh trung) OR (thanh tung)) cua nhung cong ((manh toan) OR (dan than)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hieu va - ((thanh trung) OR (thanh tung)) cua nhung cong ((manh toan) or (dan than)) cau".
• Adding a wildcard symbol may retrieve word variants: hoc hieu va - ((thanh trung) OR (thanh tung)) cua nhung cong ((manh toan) or (dan than)) cau*.