Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"anh han do snippets" » "anh nhan do snippets", "anh phan do snippets", "hanh han do snippets", "anh ban do snippets", "anh van do 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 han do 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 han do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( anh han do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("anh han do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.