Perhaps you should try some spelling variations:
phuong huong » phuong duong, phuong luong, thuong phuong
chieu sang » chieu sach, chieu xanh, hieu lang
trung tuan » trung thanh, trung tam, tran tuan
trung cua » truong cua, trung cap, dung cua
huong ban » huong dan, huong ben, huong lan
ban than » ban thanh, van thanh, ban hang
than ban » thanh ban, toan ban, than man

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((chieu sang) or (trieu tinh)) - thanh ((trung cua) or (trung tuan)) phuong huong ban than ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu sang) OR (trieu tinh)) - thanh ((trung cua) OR (trung tuan)) phuong huong ban than ban.
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu sang) or (trieu tinh)) - thanh ((trung cua) or (trung tuan)) phuong huong ban than ban*.