Perhaps you should try some spelling variations:
dau tieng » dau tien, cau tieng, day tieng
sach ty » sach tu, sach thu, xach tay
nang xa » nang x, lang xa, nang ma
va hanh » van hanh, va thanh, va danh
hanh bi » hanh vi, thanh bai, khanh bui
va cam » va cham, va cac, va cai
va cao » va cac, va co, va dao

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

• Performing a fuzzy search may retrieve terms with similar spellings: te ((sach ty) OR (sach y)) nang xa hoi. hieu ((va cam) or (va cao)) tu va hanh bi dau tieng~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach ty) OR (sach y)) nang xa hoi. hieu ((va cam) OR (va cao)) tu va hanh bi dau tieng.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach ty) OR (sach y)) nang xa hoi. hieu ((va cam) or (va cao)) tu va hanh bi dau tieng".
• Adding a wildcard symbol may retrieve word variants: te ((sach ty) OR (sach y)) nang xa hoi. hieu ((va cam) or (va cao)) tu va hanh bi dau tieng*.