Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lich chau cu snippets" » "lich thai cu snippets", "minh chau cu snippets", "dinh chau cu snippets", "lich chau au snippets", "lich chat cua snippets", "lich cham cuu 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: (((("lich chau cu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lich chau cu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lich chau cu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lich chau cu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.