Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
hanh tranh » canh tranh, hanh trinh, hanh trang
hoc thieu » toc thieu, hoc hien
tranh cua » doanh cua, manh cua
cua nhung » va nhung
hoang hai » hoang thi, hoang van
cong hai » cong thai, cong ha, cong tac
toan cau » 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: hoc thieu sach - hanh tranh cua nhung ((uong bi) or (((cong hai) OR (hoang hai)))) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sach - hanh tranh cua nhung ((uong bi) OR (((cong hai) OR (hoang hai)))) toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu sach - hanh tranh cua nhung ((uong bi) or (((cong hai) OR (hoang hai)))) toan cau".
• Adding a wildcard symbol may retrieve word variants: hoc thieu sach - hanh tranh cua nhung ((uong bi) or (((cong hai) OR (hoang hai)))) toan cau*.