Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tro cham hoi snippets" » "tri cham hoi snippets", "trong cham hoi snippets", "tro choi hoi snippets", "tro cham voi snippets", "tro cham h'roi snippets", "tro pham hoai 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: (((("tro cham 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: (((("tro cham hoi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tro cham hoi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tro cham hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.