Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"minh dan ke snippets" » "minh danh ke snippets", "minh doan ke snippets", "binh dan ke snippets", "minh dan ky snippets", "minh dan ve snippets", "minh ban ke 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: (((("minh dan 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: (((("minh dan ke snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( minh dan ke snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("minh dan ke snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.