Perhaps you should try some spelling variations:
thanh tung » thanh cong
dan nhung » ban nhung, dap nhung, san nhung
luong tap » luong tai, cuong tap, luong tham
theo chu » theo chieu, cho chu, chao chu
chu sach » cau sach, thu sach, chieu sach
tung dan » dung dan, huong dan, trung dai
cong tap » cuong tap, cong tac, tong tap
cong tan » cong tac, cong san, cong thanh

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chu sach - thanh tung dan nhung ((cong tap) or (((cong tan) or (luong tap)))) van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu sach - thanh tung dan nhung ((cong tap) OR (((cong tan) OR (luong tap)))) van ban.
• Adding a wildcard symbol may retrieve word variants: theo chu sach - thanh tung dan nhung ((cong tap) or (((cong tan) or (luong tap)))) van ban*.