Perhaps you should try some spelling variations:
ngang tuan » quang tuan, nganh toan, trang tuan
hoang tuan » hoang xuan, hoang tran, hoang thanh
hieu xanh » chieu xanh, hieu manh, hieu nganh
tong cong » trong cong, cong cong, dung cong
doc hieu » toc thieu, hoc thieu, hoc hien
trung va » truong va, trang va, trung tam
trung ha » trung hoc, trung tam, trung cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc hieu xanh - thanh ((trung va) or (trung ha)) tong cong ((ngang tuan) OR (hoang tuan)) chau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu xanh - thanh ((trung va) OR (trung ha)) tong cong ((ngang tuan) OR (hoang tuan)) chau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc hieu xanh - thanh ((trung va) or (trung ha)) tong cong ((ngang tuan) OR (hoang tuan)) chau*".