Perhaps you should try some spelling variations:
trung tuan » trung thanh, trung tam, tran tuan
nang luong » nang song
chi sach » chinh sach, chieu sach, co sach
trung ca » trung cap, truong ca, trung cua
luong va » dung va
quan mau » quan cau, lluan mau, quang bau
doi chi » doi khi
va quan » van quan, tac quan, hai quan

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chi sach - thanh ((trung ca) or (trung tuan)) nang luong va quan mau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi sach - thanh ((trung ca) OR (trung tuan)) nang luong va quan mau*.