Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhan tap can snippets" » "nhan tai can snippets", "nhan tao can snippets", "han tap can snippets", "nhan tap van snippets", "nhan tap cac snippets", "nhan tac can 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: (((("nhan tap can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nhan tap can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhan tap can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhan tap can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.