Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tung hoc ve snippets" » "trung hoc ve snippets", "tuong hoc ve snippets", "tung ho ve snippets", "tung hoc va snippets", "tung hoc vi snippets", "tung hoc vo 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: (((("tung hoc 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: (((("tung hoc ve snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tung hoc ve snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tung hoc ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.