Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cho dieu che snippets" » "cao dieu che snippets", "co dieu che snippets", "khoa dieu che snippets", "cho lieu che snippets", "cho diem chet snippets", "cho dieu chan 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: (((("cho dieu che snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cho dieu che snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cho dieu che snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cho dieu che snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.