Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chi lang cua snippets" » "thi lan cua snippets", "chi van cua snippets", "hoi lang cua snippets", "chi mang cua snippets", "chi hang cua snippets", "chi long 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 lang 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 lang cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chi lang cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chi lang cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.