Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"trinh van cham snippets" » "trinh han cham snippets", "trinh quan cham snippets", "trinh toan cham snippets", "trinh van chat snippets", "trinh van tham snippets", "trinh va cham snippets"
"locating bug core snippets" » "locating bug code 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: (((("using java code snippets") or ("trinh van cham snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java code snippets") OR ("trinh van cham snippets"))) OR ("locating bug core snippets")).
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