Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chi thanh ca snippets" » "chi nhanh ca snippets", "thi thanh ca snippets", "cho thanh ca snippets", "chi thanh cha snippets", "chi thanh cac snippets", "chi thanh ha 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: (((("chi thanh 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: (((("chi thanh ca snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chi thanh ca snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chi thanh ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.