Perhaps you should try some spelling variations:
trong thuat » trong hoat, trong phat, trong thuc
thieu tinh » trieu tinh, chieu tinh, thien tinh
hoc thieu » toc thieu, hoc hien
trong thu » trong nha
nang cong » nang song, bang cong, hang cong
dang cong » dung cong
luong van » luong va, duong van, luong vat

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 - manh ((trong thuat) or (trong thu)) ((nang cong) OR (dang cong)) luong van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu tinh - manh ((trong thuat) OR (trong thu)) ((nang cong) OR (dang cong)) luong van ban*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu tinh - manh ((trong thuat) or (trong thu)) ((nang cong) OR (dang cong)) luong van ban*".