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
sinh cua » manh cua, dinh cuu
cong van » cong vang, cong san, song van
tuan cau » toan cau, quan cau, tuan cu
toan ban » van ban
sinh va » sinh vat, tinh va, dinh 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 ((sinh cua) OR (sinh va)) nhung cong van ((tuan cau) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu tinh - hanh ((sinh cua) OR (sinh va)) nhung cong van ((tuan cau) OR (toan ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu tinh - hanh ((sinh cua) OR (sinh va)) nhung cong van ((tuan cau) or (toan ban))".
• Adding a wildcard symbol may retrieve word variants: hoc thieu tinh - hanh ((sinh cua) OR (sinh va)) nhung cong van ((tuan cau) or (toan ban))*.