Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phap thuc ve snippets" » "phap thu ve snippets", "phap hoc ve snippets", "phap tu ve snippets", "phap thuc va snippets", "phap thuc te snippets", "phap thuc viet 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: (((("phap thuc 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: (((("phap thuc ve snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phap thuc ve snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phap thuc ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.