Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tien dat doc snippets" » "tren dat doc snippets", "tien mat doc snippets", "mien dat doc snippets", "tien dat duoc snippets", "tien day doc snippets", "tien dat nuoc 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: (((("tien dat doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tien dat doc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tien dat doc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tien dat doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.