Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"gian bieu do snippets" » "gian hieu do snippets", "gian tieu do snippets", "giang bien do snippets", "gian bien do snippets", "gian bieu o snippets", "gian bien doi 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: (((("gian bieu 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: (((("gian bieu do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( gian bieu do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("gian bieu do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.