Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chau hap can snippets" » "khau nhap can snippets", "chap phap can snippets", "chau nhan can snippets", "chau hau can snippets", "chau cap can snippets", "chau hap ban 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: (((("chau hap can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chau hap can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chau hap can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chau hap can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.