Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tru cua doc snippets" » "trau cua doc snippets", "trua cua doc snippets", "tu cua doc snippets", "tru cua duoc snippets", "tru cua duc snippets", "tru cua hoc 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: (((("tru cua 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: (((("tru cua doc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tru cua doc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tru cua doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.