Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pho nam doi snippets" » "pho tam doi snippets", "phong nam doi snippets", "pham nam doi snippets", "pho nam hoi snippets", "pho nam do snippets", "pho nam noi 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: (((("pho nam doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("pho nam doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pho nam doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pho nam doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.