Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"anh trac du snippets" » "sinh trac du snippets", "anh tuan du snippets", "anh thuc du snippets", "anh truc du snippets", "anh tac du snippets", "anh tra du 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: (((("anh trac du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("anh trac du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( anh trac du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("anh trac du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.