Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thi giac do snippets" » "thi giang do snippets", "phi gia do snippets", "thi tac do snippets", "thi gia do snippets", "thi giac mo snippets", "thi giac duoc 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: (((("thi giac do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thi giac do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thi giac do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thi giac do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.