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