Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dao phat hoa snippets" » "va phat hoa snippets", "dao phan hoa snippets", "dao chat hoa snippets", "dao pham hoa 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 phat hoa 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 phat hoa snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dao phat hoa snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dao phat hoa snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.