Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"van hung cap snippets" » "van dung cap snippets", "manh hung cap snippets", "van duong cap snippets", "van cung cap snippets", "van hung ca snippets", "van trung cap 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: (((("van hung cap snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("van hung cap snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( van hung cap snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van hung cap snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.