Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khau van cuc snippets" » "chau van cuc snippets", "khau dan cuc snippets", "khao van cuc snippets", "khau van duc snippets", "khau van luc snippets", "khau van cu 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: (((("khau van cuc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khau van cuc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khau van cuc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khau van cuc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.