Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"de lang trong snippets" » "de dung trong snippets", "de cong trong snippets", "de dong trong snippets", "den lang trong snippets", "de dang trong snippets", "de tang trong snippets"
"locating bug core snippets" » "locating bug code 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 code snippets") or ("de lang trong snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java code snippets") OR ("de lang trong snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( de lang trong snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("de lang trong snippets"))) or ("locating bug core snippets"))*.