Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"kho bac toan snippets" » "kho bai toan snippets", "kho bao toan snippets", "kho hach toan snippets", "cho bac toan snippets", "tho bac toan snippets", "khoi bay toan 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: (((("kho bac toan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("kho bac toan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( kho bac toan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("kho bac toan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.