Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hai huoc cua snippets" » "thai hoc cua snippets", "hai muoi cua snippets", "hai hoc cua snippets", "hai nuoc cua snippets", "hai huong 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: (((("hai huoc 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: (((("hai huoc cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hai huoc cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hai huoc cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.