Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"qua chat cua snippets" » "qua nhat cua snippets", "qua cham cua snippets", "luan chat cua snippets", "qua chat va snippets", "qua chat huu 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: (((("qua chat cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("qua chat cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( qua chat cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("qua chat cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.