Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"van muoi ca snippets" » "van loi ca snippets", "van bui ca snippets", "van noi ca snippets", "van duoi ca snippets", "van muoi co snippets", "van muoi cach 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 muoi ca 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 muoi ca snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( van muoi ca snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van muoi ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.