Perhaps you should try some spelling variations:
hoc thieu » hoc hien
dung cong » dung trong
cong vang » cong lang, cong quang, cong ngang
vang phan » van phan, nang phan, quang phan
thanh ta » thanh tra, thanh tai, thanh tay
van dung » van dong, xay dung, tin dung
phan bac » phan cac, phan ba, pham bac
ta van » tan van, tap van, va van

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) or (toc thieu)) tinh - thanh ta van dung cong vang phan bac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (toc thieu)) tinh - thanh ta van dung cong vang phan bac.
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) or (toc thieu)) tinh - thanh ta van dung cong vang phan bac*.