Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"vit chu chan snippets" » "vit chu han snippets", "vit chua chay snippets", "vit chu van snippets", "viet chu chan snippets", "viet chau chan snippets", "viet cho chan 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: (((("vit chu chan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("vit chu chan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( vit chu chan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("vit chu chan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.