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