Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"anh vu cho snippets" » "hanh vu cho snippets", "anh tu cho snippets", "anh va cho snippets", "anh vu cao snippets", "anh cu cho snippets", "anh uu cho 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 vu cho 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 vu cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( anh vu cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("anh vu cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.