Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hung thu so snippets" » "ung thu so snippets", "dung thu so snippets", "hong thu so snippets", "hung thuc so snippets", "hung tru so snippets", "hung tu so 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: (((("hung thu so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hung thu so snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hung thu so snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hung thu so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.