Perhaps you should try some spelling variations:
thanh trung » thanh tung
trung thanh » truong thanh
thieu xanh » hieu manh, thien anh, thien danh
chieu xanh » chieu sach, chieu sang, chieu tinh
thanh hoc » thanh hoa, than hoc, thanh ho
hoc dung » hoc ung, hoc dan, tac dung
dung tap » dung tai, dung tay, dung lap
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((thieu xanh) or (chieu xanh)) - thanh trung thanh hoc dung tap ((toan tap) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (chieu xanh)) - thanh trung thanh hoc dung tap ((toan tap) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) or (chieu xanh)) - thanh trung thanh hoc dung tap ((toan tap) or (toan ban))*.