Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
hanh trang » thanh trung, canh tranh, hanh trinh
vang thanh » van thanh, dang thanh, tang thanh
hoc thieu » toc thieu, hoc hien
chua nang » chuc nang, chua xang, cuu nang
cong vang » cong lang, cong quang, cong ngang
thanh cau » thanh chau, thanh mau, nhanh cau
kha nang » phap nang, ky nang, ki nang

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 trang ((((chua nang) OR (kha nang))) or (cam nang)) cong vang thanh cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sach - hanh trang ((((chua nang) OR (kha nang))) OR (cam nang)) cong vang thanh cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu sach - hanh trang ((((chua nang) OR (kha nang))) or (cam nang)) cong vang thanh cau".
• Adding a wildcard symbol may retrieve word variants: hoc thieu sach - hanh trang ((((chua nang) OR (kha nang))) or (cam nang)) cong vang thanh cau*.