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