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