Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"soan theo du snippets" » "soan thao du snippets", "soan theo dau snippets", "soan theo tu snippets", "soan theo duoi 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: (((("soan theo du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("soan theo du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( soan theo du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("soan theo du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.