Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"theo doi cua snippets" » "theo duoi cua snippets", "theo don cua snippets", "theo dong cua snippets", "theo hoi cua snippets", "theo dai 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: (((("theo doi 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: (((("theo doi cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( theo doi cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("theo doi cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.