Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chi tinh doi snippets" » "chai tinh doi snippets", "chi minh doi snippets", "chi binh doi snippets", "chi trinh doc snippets", "chi trinh do snippets", "chi tinh hoc 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 tinh doi 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 tinh doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chi tinh doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chi tinh doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.