Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chu anh doc snippets" » "chu manh doc snippets", "cuu anh doc snippets", "chi anh doc snippets", "chu anh duc snippets", "chu anh hoc snippets", "chu nang doc 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: (((("chu anh doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chu anh doc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chu anh doc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chu anh doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.