Perhaps you should try some spelling variations:
trung tuan » trung thanh, trung tam, tran tuan
hoc thieu » toc thieu, hoc hien
thieu anh » thien anh, chieu xanh, thien danh
trung cua » truong cua, trung cap, dung cua
thong va » thong cua, truong va, thong qua
toan tap » toan ban
va toan » van toan, bai toan, tap toan

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 anh - manh ((trung cua) or (trung tuan)) thong thong va toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu anh - manh ((trung cua) OR (trung tuan)) thong thong va toan tap.
• Adding a wildcard symbol may retrieve word variants: hoc thieu anh - manh ((trung cua) or (trung tuan)) thong thong va toan tap*.