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