Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cach lieu ho snippets" » "cach tieu ho snippets", "bac lieu ho snippets", "cach bien ho snippets", "cach lieu hoc snippets", "cach lieu hop snippets", "cach lieu so 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 lieu ho 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 lieu ho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cach lieu ho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cach lieu ho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.