Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhung thu do snippets" » "hung thu do snippets", "nhung phu do snippets", "nhung chu do snippets", "nhung thuy do snippets", "nhung khu do snippets", "nhung tu do 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: (((("nhung thu 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: (((("nhung thu do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhung thu do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhung thu do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.