Perhaps you should try some spelling variations:
trung thanh » truong thanh
chieu xanh » chieu sach, chieu tinh, hieu manh
chieu sang » chieu sach, hieu lang, nhieu tang
trung tuan » trung tam, tran tuan, truong thanh
thong dan » thong van, tuong dan, thong den
dan chan » dan gian, dan ca, van chat
chan dau » phan dau, han dau, chan doan

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 xanh) or (chieu sang)) - hanh ((trung tuan) OR (trung thanh)) thong thong dan chan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu xanh) OR (chieu sang)) - hanh ((trung tuan) OR (trung thanh)) thong thong dan chan dau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chieu xanh) or (chieu sang)) - hanh ((trung tuan) OR (trung thanh)) thong thong dan chan dau".
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu xanh) or (chieu sang)) - hanh ((trung tuan) OR (trung thanh)) thong thong dan chan dau*.