Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"voi hang do snippets" » "doi khang do snippets", "thi hang do snippets", "van hang do snippets", "voi hang doi snippets", "voi dang do snippets", "voi hang di 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: (((("voi hang do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("voi hang do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( voi hang do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("voi hang do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.