Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"manh voi con snippets" » "hanh voi con snippets", "lanh voi con snippets", "minh voi con snippets", "manh voi cong snippets", "manh voi chon snippets", "manh voi can 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 voi con 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 voi con snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( manh voi con snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("manh voi con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.