Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhung goc so snippets" » "nhung cuoc so snippets", "nhung gi so snippets", "nhung bo so snippets", "nhung goc do snippets", "nhung hoc so snippets", "nhung ngoc son 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 goc 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: (((("nhung goc so snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhung goc so snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhung goc so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.