Perhaps you should try some spelling variations:
thuoc cong » truoc cong, thuoc trong, thu cong
sach tham » sach nha
thuc cong » thu cong, chuc cong, thuc con
dan tuong » ban tuong, dai tuong, dan trong
tham tai » pham tai, thai tai, thap tai
tuong ho » tong hop
tai tuan » tri tuan, ta tuan, tai quan
tuan tai » toan tai, quan tai, tan tai
su sach » so sach, vu sach
hoi tai » hoc tai, hoi trac
ho xa » hoa xa, hoc xa, cho xa

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach tham tai, nghiem ((thuc cong) OR (thuoc cong)) hoa dan tuong ho xa hoi tai tuan tai~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach tham tai, nghiem ((thuc cong) OR (thuoc cong)) hoa dan tuong ho xa hoi tai tuan tai".
• Adding a wildcard symbol may retrieve word variants: su sach tham tai, nghiem ((thuc cong) OR (thuoc cong)) hoa dan tuong ho xa hoi tai tuan tai*.