Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"fai van tuan snippets" » "fai van quan snippets", "fai van ban snippets", "fai anh tuan snippets", "hai van tuan snippets", "mai van tuan snippets", "lai van tuan snippets", "fai van tuan slippers"
"locating bug code snippets" » "locating bug code slippers", "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: (((("fai van tuan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("fai van tuan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( fai van tuan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("fai van tuan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.