Perhaps you should try some spelling variations:
thanh trung » thanh tung
thieu tinh » trieu tinh, chieu tinh, thien tinh
cong ngang » cong nhan, cong quang, cong lang
hoc thieu » toc thieu, hoc hien
trung cap » truong cao, trung tam
cap dung » ap dung, cao dung, chan dung
cong van » cong vang, cong san, song van
tang ban » tang bang, tiang ban, tang van
tan ban » toan ban, van ban, can 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 tinh - thanh trung cap dung ((cong van) or (cong ngang)) ((tan ban) or (tang ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu tinh - thanh trung cap dung ((cong van) OR (cong ngang)) ((tan ban) OR (tang ban)).
• Adding a wildcard symbol may retrieve word variants: hoc thieu tinh - thanh trung cap dung ((cong van) or (cong ngang)) ((tan ban) or (tang ban))*.