Perhaps you should try some spelling variations:
lang trong » dung trong, cong trong, dong trong
hoc thieu » hoc hien
thanh tri » thanh tra, thanh tai, chinh tri
gian lang » gian dan
trong van » trong cac
van thinh » van thanh, van chinh, van minh
thinh can » chinh can, tinh can, thinh doan
tri gian » tri gia, toi gian, tri giam

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 tri gian lang trong van thinh can~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (toc thieu)) tinh - thanh tri gian lang trong van thinh can.
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) or (toc thieu)) tinh - thanh tri gian lang trong van thinh can*.