Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"bai tuong vo snippets" » "bai trong vo snippets", "ban tuong vo snippets", "dai tuong vo snippets", "bai tuong ho snippets", "bai cuong vo snippets", "bai tuong so 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: (((("bai tuong vo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("bai tuong vo snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( bai tuong vo snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("bai tuong vo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.