Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"hinh hoc php snippets" » "sinh hoc php snippets", "tin hoc php snippets", "benh hoc php snippets", "hinh hoc phap snippets", "hinh hoc pho snippets", "hinh hoc phe 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: (((("hinh hoc php snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hinh hoc php snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( hinh hoc php snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hinh hoc php snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.