Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"toi pham cuc snippets" » "tac pham cuc snippets", "vi pham cuc snippets", "thi phap cuc snippets", "toi pham chuc snippets", "toi pham duc snippets", "toi pham cua 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: (((("toi pham cuc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("toi pham cuc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( toi pham cuc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("toi pham cuc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.