Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dao hieu cuc snippets" » "dao hieu code snippets", "cao hieu cuc snippets", "van hieu cuc snippets", "bao hiem cuc snippets", "dao hieu luc snippets", "dao hieu cac snippets", "dao hieu cua snippets"
"python using java snippets" » "python using data 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: (((("dao hieu cuc snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dao hieu cuc snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dao hieu cuc snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dao hieu cuc snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.