Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khao pham do snippets" » "hao pham do snippets", "khanh pham do snippets", "kham pha do snippets", "khao pham doi snippets", "khao pham mo snippets", "khao pham o 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: (((("khao pham 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: (((("khao pham do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khao pham do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khao pham do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.