Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dao hanh he snippets" » "dao thanh he snippets", "dang hanh he snippets", "ban hanh he snippets", "dao hanh che snippets", "dao hanh ve snippets", "dao hanh de 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: (((("dao hanh he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dao hanh he snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dao hanh he snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dao hanh he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.