Perhaps you should try some spelling variations:
thieu tinh » trieu tinh, chieu tinh, thien tinh
tuong tung » tuong tuong, trong tung, tuong tong
hoc thieu » toc thieu, hoc hien
trung nam » trung tam, trong nam, trung ha
trung cap » truong cao, trung tam
tung dan » dung dan, huong dan, trung dai
dan phan » doan phan, dan chan, van phan
phan dau » phan tu, hang dau

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 tinh - thanh ((trung nam) or (trung cap)) tuong tung dan phan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu tinh - thanh ((trung nam) OR (trung cap)) tuong tung dan phan dau.
• Adding a wildcard symbol may retrieve word variants: hoc thieu tinh - thanh ((trung nam) or (trung cap)) tuong tung dan phan dau*.