Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pha luc cho snippets" » "pha suc cho snippets", "nhan luc cho snippets", "pham duc cho snippets", "pha luc cao snippets", "pha nuoc cho snippets", "pha luat cho 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: (((("pha luc cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("pha luc cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pha luc cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pha luc cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.