Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"luc anh du snippets" » "luc canh du snippets", "duc anh du snippets", "luu anh du snippets", "luc anh duc snippets", "luc danh du snippets", "luc anh d snippets"

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"python using java snippets\") OR (\"luc anh du snippets\"))) OR (\"locating bugs code snippets\"))~".
• Removing quotes may allow a broader search: (((( python using java snippets ) OR ( luc anh du snippets ))) OR ( locating bugs code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") OR ("luc anh du snippets"))) OR ("locating bugs code snippets"))*.