Perhaps you should try some spelling variations:
thieu tinh » trieu tinh, chieu tinh, thien tinh
nhung cong » dung cong, thong cong, hang cong
hoc thieu » toc thieu, hoc hien
doanh cua » doanh luan
manh cua » ban cua
cong tan » cong tac, cong san, cong thanh
tan van » tran van, tang van, luan 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 tinh - hanh ((tranh cua) or (((manh cua) OR (doanh cua)))) nhung cong tan van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu tinh - hanh ((tranh cua) OR (((manh cua) OR (doanh cua)))) nhung cong tan van ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu tinh - hanh ((tranh cua) or (((manh cua) OR (doanh cua)))) nhung cong tan van ban".
• Adding a wildcard symbol may retrieve word variants: hoc thieu tinh - hanh ((tranh cua) or (((manh cua) OR (doanh cua)))) nhung cong tan van ban*.