Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"bac tham du snippets" » "bac thay du snippets", "sach tham du snippets", "bac thanh du snippets", "bac thap du snippets", "bac tham do snippets", "bac pham duc 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: (((("bac tham du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("bac tham du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( bac tham du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("bac tham du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.