Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luoc danh ke snippets" » "luoc dinh ke snippets", "quoc danh ke snippets", "luoc canh ke snippets", "luoc dan ke snippets", "luoc danh kien snippets", "luoc doanh ket 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: (((("luoc danh ke snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("luoc danh ke snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luoc danh ke snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luoc danh ke snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.