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