Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tiep va du snippets" » "tien va du snippets", "tiet va du snippets", "tiep can du snippets", "tiep va dau snippets", "tiep va su snippets", "tiep va tu 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: (((("tiep va du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tiep va du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tiep va du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tiep va du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.