Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cao anh voi snippets" » "cao dang voi snippets", "cao tang voi snippets", "cao bang voi snippets", "cao hanh voi snippets", "cao lanh voi snippets", "cao anh noi 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: (((("cao anh voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cao anh voi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cao anh voi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cao anh voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.