Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tri vu cham snippets" » "tri va cham snippets", "tri vu kham snippets", "tri tu cham snippets", "thi vu cham snippets", "tri du cham 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: (((("tri vu cham snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tri vu cham snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tri vu cham snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tri vu cham snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.