Perhaps you should try some spelling variations:
thien hach » thien thanh, hien hanh
trung tuan » trung thanh, trung tam, tran tuan
cong huong » cong thuong, cong luong, cong hung
hoc thien » hoc hien, hoc thieu, hoc thiet
trung cua » truong cua, trung cap, dung cua
dan than » dan chan, ban than, van than

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thien hach - thanh ((trung cua) OR (trung tuan)) cong huong ((dan than) or (dan ca)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thien hach - thanh ((trung cua) OR (trung tuan)) cong huong ((dan than) OR (dan ca)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thien hach - thanh ((trung cua) OR (trung tuan)) cong huong ((dan than) or (dan ca)) cau".
• Adding a wildcard symbol may retrieve word variants: hoc thien hach - thanh ((trung cua) OR (trung tuan)) cong huong ((dan than) or (dan ca)) cau*.