Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nang dau chi snippets" » "hang dau chi snippets", "xang dau chi snippets", "nang du chi snippets", "nang dau khi snippets", "nang dau cuoi 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: (((("nang dau chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nang dau chi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nang dau chi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nang dau chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.