Perhaps you should try some spelling variations:
kieu tinh » lieu tinh, trieu tinh, diep tinh
chau tinh » cuu tinh, ha tinh, cua tinh
dung cong » dung trong
nang duy » nang dua, nang quy, hoang duy
cong san » cong tac
san toan » van toan, dan toan, manh toan
toan tap » toan ban
nang du » nang tu, nang luc, nang doc

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((kieu tinh) or (chau tinh)) - ganh ((nang duy) OR (nang du)) dung cong san toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((kieu tinh) OR (chau tinh)) - ganh ((nang duy) OR (nang du)) dung cong san toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((kieu tinh) or (chau tinh)) - ganh ((nang duy) OR (nang du)) dung cong san toan tap".
• Adding a wildcard symbol may retrieve word variants: theo ((kieu tinh) or (chau tinh)) - ganh ((nang duy) OR (nang du)) dung cong san toan tap*.