Perhaps you should try some spelling variations:
thieu tinh » trieu tinh, chieu tinh, thien tinh
hoc thieu » toc thieu, hoc hien
tranh cua » doanh cua, manh cua
mang cua » manh cua, dung cua, ban cua
cong van » cong vang, song van, cong tan
cong san » cong tac
ban cao » bao cao, ban can, ban co

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 ((mang cua) or (tranh cua)) hang ((cong van) OR (cong san)) ban cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu tinh - hanh ((mang cua) OR (tranh cua)) hang ((cong van) OR (cong san)) ban cao*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu tinh - hanh ((mang cua) or (tranh cua)) hang ((cong van) OR (cong san)) ban cao*".