Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"son tang ve snippets" » "son tung ve snippets", "son thanh ve snippets", "nen tang ve snippets", "son tang le snippets", "son dang ve snippets", "son hang ve 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: (((("son tang ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("son tang ve snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( son tang ve snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("son tang ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.