Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hao ve cac snippets" » "bao ve cac snippets", "dao ve cac snippets", "hao le cac snippets", "hao va cac snippets", "hao vien cac 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: (((("hao ve cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hao ve cac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hao ve cac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hao ve cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.