Perhaps you should try some spelling variations:
nhung huong » nhung phuong, nhung tuong, nhung cong
theo chieu » theo tieu, theo chu, thi chieu
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 thanh » ban hanh, ban hang
thanh lap » thanh san, phan lap, thanh hai
ho chieu » hoc thieu, doi chieu, mot chieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chieu) or (theo chieu)) tinh - hanh ((trung cua) OR (trung tuan)) nhung huong ban thanh lap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (theo chieu)) tinh - hanh ((trung cua) OR (trung tuan)) nhung huong ban thanh lap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (theo chieu)) tinh - hanh ((trung cua) OR (trung tuan)) nhung huong ban thanh lap".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (theo chieu)) tinh - hanh ((trung cua) OR (trung tuan)) nhung huong ban thanh lap*.