Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hanh vit con snippets" » "hanh vi con snippets", "danh viet con snippets", "hanh tiet con snippets", "hanh vat con snippets", "hanh vot con 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: (((("hanh vit con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hanh vit con snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hanh vit con snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hanh vit con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.