Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cach dem hoi snippets" » "cach de hoi snippets", "cac diem hoi snippets", "cach ben hoi snippets", "cach dem toi snippets", "cach dep hoi snippets", "cach dam choi 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: (((("cach dem hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cach dem hoi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cach dem hoi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cach dem hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.