Perhaps you should try some spelling variations:
thieu tinh » trieu tinh, chieu tinh, thien tinh
nhung cong » thong cong, nhung don, nhung lang
hoc thieu » toc thieu, hoc hien
hang cong » dang cong, hang nong, bang cong
dung cong » dung trong
lan hanh » ban hanh, van hanh, lan anh
san than » sang than, san thanh, ban than
than ban » thanh ban, toan ban, than man
hanh va » hang va, hanh vi

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 - lan hanh va ((((nhung cong) or (hang cong))) or (dung cong)) san than ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu tinh - lan hanh va ((((nhung cong) OR (hang cong))) OR (dung cong)) san than ban.
• Adding a wildcard symbol may retrieve word variants: hoc thieu tinh - lan hanh va ((((nhung cong) or (hang cong))) or (dung cong)) san than ban*.