Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nha dong von snippets" » "nhan dong von snippets", "ha dong von snippets", "nha dung von snippets", "nha dong co snippets", "nha dong hoc 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: (((("nha dong von snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nha dong von snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nha dong von snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nha dong von snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.