Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thanh doc ve snippets" » "than doc ve snippets", "thanh do ve snippets", "nhanh doc ve snippets", "thanh hoc ve snippets", "thanh doc va 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: (((("thanh doc ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thanh doc ve snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thanh doc ve snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thanh doc ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.