Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tho van cham snippets" » "tho van chat snippets", "tho van tham snippets", "tho va cham snippets", "thao van cham snippets", "ho van cham snippets", "tho dan 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: (((("tho van 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: (((("tho van cham snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tho van cham snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tho van cham snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.