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