Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"song dan hoi snippets" » "song danh hoi snippets", "song van hoi snippets", "song da hoi snippets", "song dan hoc snippets", "song dai hoi snippets", "song dang khoi snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("song dan hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("song dan hoi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( song dan hoi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("song dan hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.