Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"anh cua voi snippets" » "manh cua voi snippets", "hanh cua voi snippets", "canh cua voi snippets", "anh chua voi snippets", "anh cua vi snippets", "anh cua hoi 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: (((("anh cua voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("anh cua voi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( anh cua voi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("anh cua voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.