Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
chieu tinh » trieu tinh, lieu tinh, chau tinh
canh tran » canh tranh, hanh trang, banh trang
dang cong » dung cong
ho chieu » theo chieu, hoc thieu, doi chieu
tran van » luan van
toan tai » toan tap, doanh tai, toan ban
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: ho chieu tinh - canh tran van ((thong cong) OR (dang cong)) tan ((toan tai) OR (toan cao))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu tinh - canh tran van ((thong cong) OR (dang cong)) tan ((toan tai) OR (toan cao))".
• Adding a wildcard symbol may retrieve word variants: ho chieu tinh - canh tran van ((thong cong) OR (dang cong)) tan ((toan tai) OR (toan cao))*.