Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chi quan cua snippets" » "che quan cua snippets", "phi quan cua snippets", "thi quan cua snippets", "chi quan luan snippets", "chi ban cua snippets", "chi gian cua 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: (((("chi quan cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chi quan cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chi quan cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chi quan cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.