Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hon phan che snippets" » "hoc phan che snippets", "hoa phan che snippets", "hon nhan che snippets", "hon han che snippets", "hon phap che snippets", "hon phan thi 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: (((("hon phan che snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hon phan che snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hon phan che snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hon phan che snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.