Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"minh don cua snippets" » "minh doan cua snippets", "minh dong cua snippets", "minh son cua snippets", "minh doi cua snippets", "minh con 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: (((("minh don cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("minh don cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( minh don cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("minh don cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.