Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pho tac can snippets" » "phoi tac can snippets", "pho tam can snippets", "nho tac can snippets", "pho tac van snippets", "pho tac quan snippets", "pho tac vang 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: (((("pho tac 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: (((("pho tac can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pho tac can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pho tac can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.