Perhaps you should try some spelling variations:
lanh hanh » lanh manh, lenh hanh, xanh hanh
hang cong » dang cong, hang nong, bang cong
theo chu » theo chieu, cho chu, chao chu
chu bang » thu bang, chuc nang, chu quang
ly trinh » ly tinh, lap trinh, quy trinh
ly trong » le trong, cay trong
hanh va » hang va, hanh vi
va hang » van hang, va nang, va lang
ly toan » le toan, ly hoan, ly tran

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chu bang - lanh hanh va hang cong ((((ly trinh) or (ly trong))) or (ly toan)) chau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu bang - lanh hanh va hang cong ((((ly trinh) OR (ly trong))) OR (ly toan)) chau.
• Adding a wildcard symbol may retrieve word variants: theo chu bang - lanh hanh va hang cong ((((ly trinh) or (ly trong))) or (ly toan)) chau*.