Perhaps you should try some spelling variations:
hoc thieu » hoc hien
hanh sinh » hanh tinh, hanh dinh, hinh sinh
cua nhung » va nhung
chong van » thong van, hong van, chong va
phong van » phung van, thong van, phong va
sinh cua » manh cua, dinh cuu, sinh va
toan cao » toan ban, toan tap

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)) xanh - hanh sinh cua nhung ((chong van) OR (phong van)) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (toc thieu)) xanh - hanh sinh cua nhung ((chong van) OR (phong van)) toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc thieu) or (toc thieu)) xanh - hanh sinh cua nhung ((chong van) OR (phong van)) toan cao".
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) or (toc thieu)) xanh - hanh sinh cua nhung ((chong van) OR (phong van)) toan cao*.