Perhaps you should try some spelling variations:
chau tinh » cuu tinh, ha tinh, cua tinh
hang cong » dang cong, hang nong, bang cong
hoc chau » hoc chat, moc chau, hoc cau
trung va » truong va, trang va, trung tam
trung ha » trung hoc, trung tam, trung cap
cong san » cong tac
toan tai » toan tap, doanh tai, toan cao
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 chau tinh - hanh ((trung va) or (trung ha)) hang cong san ((toan tai) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chau tinh - hanh ((trung va) OR (trung ha)) hang cong san ((toan tai) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: hoc chau tinh - hanh ((trung va) or (trung ha)) hang cong san ((toan tai) or (toan ban))*.