Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"goc va hoi snippets" » "hoc va hoi snippets", "loc va hoi snippets", "doc va hoi snippets", "goc xa hoi snippets", "goc va hoc snippets", "goc va hoa 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: (((("goc va hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("goc va hoi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( goc va hoi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("goc va hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.