Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
cong luong » cong thuong, nang luong, cong dong
hoc thieu » toc thieu, hoc hien
chinh tai » chinh tri
cong tac » cong ty
toan cao » toan ban, toan tap
hanh va » hang va, hanh vi

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thieu sach - hanh ((chinh tai) or (hanh va)) dung ((cong tac) or (cong luong)) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sach - hanh ((chinh tai) OR (hanh va)) dung ((cong tac) OR (cong luong)) toan cao.
• Adding a wildcard symbol may retrieve word variants: hoc thieu sach - hanh ((chinh tai) or (hanh va)) dung ((cong tac) or (cong luong)) toan cao*.