Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"van hang ca snippets" » "van hang code snippets", "van khang ca snippets", "van hoang ca snippets", "van thang ca snippets", "van hang va snippets", "van nang cao snippets", "van hang tai snippets"
"using java java snippets" » "using data java snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("using java java snippets") or ("van hang ca snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java java snippets") OR ("van hang ca snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( using java java snippets ) or ( van hang ca snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using java java snippets") or ("van hang ca snippets"))) or ("locating bug core snippets"))*.