Perhaps you should try some spelling variations:
lang trong » dung trong, cong trong, dong trong
chieu sach » chinh sach, chiet tach, chieu sang
anh trong » anh thuong, dinh trong, sinh trong
dung cong » dung trong
van dung » van dong, xay dung, tin dung
cong tan » cong tac, cong san, cong thanh
tan van » tran van, tang van, luan 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 ((chieu sach) or (trieu tinh)) - ((anh trong) OR (lang trong)) van dung cong tan van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu sach) OR (trieu tinh)) - ((anh trong) OR (lang trong)) van dung cong tan van ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chieu sach) or (trieu tinh)) - ((anh trong) OR (lang trong)) van dung cong tan van ban".
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu sach) or (trieu tinh)) - ((anh trong) OR (lang trong)) van dung cong tan van ban*.