Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"anh dao doc snippets" » "lanh dao doc snippets", "hanh dao doc snippets", "anh dat doc snippets", "anh dao duc snippets", "anh dao 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 dao doc 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 dao doc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( anh dao doc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("anh dao doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.