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