Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dao dang son snippets" » "cao dang son snippets", "da dang son snippets", "dao dong son snippets", "dao lang son snippets", "dao bang son 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 dang son 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 dang son snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dao dang son snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dao dang son snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.