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