Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"song van doc snippets" » "hoang van doc snippets", "trong van doc snippets", "duong van doc snippets", "song van duoc snippets", "song van hoc snippets", "song van loc 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 van doc 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 van doc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( song van doc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("song van doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.