Perhaps you should try some spelling variations:
thanh tung » thanh cong
luong tham » luong thanh, luong tai, luong thi
dan nhung » ban nhung, dap nhung, san nhung
cuong tap » luong tap, cong tac, luong tai
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 » cong tac, cong tan, tong tap

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 (((cuong tap) or (luong tham)))) 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 (((cuong tap) OR (luong tham)))) van ban.
• Adding a wildcard symbol may retrieve word variants: theo chu sach - thanh tung dan nhung ((cong tap) or (((cuong tap) or (luong tham)))) van ban*.