Perhaps you should try some spelling variations:
dau tren » dau tien, dat tren, dau tieng
tinh hai » tinh thai, tinh chat, trinh han
sach ty » sach y, sach tu, sach thu
nang xa » nang x, lang xa, nang ma
sach ky » sac ky, sach y, sach kem
van dam » van nam, van dao, van dau
van cau » van dau, van hau, van chat
va tinh » may tinh
hai dau » han dau, hai dan, hai hau

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 ky) OR (sach ty)) nang xa hoi. hieu ((van dam) or (van cau)) tu va tinh hai dau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach ky) OR (sach ty)) nang xa hoi. hieu ((van dam) OR (van cau)) tu va tinh hai dau tren.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach ky) OR (sach ty)) nang xa hoi. hieu ((van dam) or (van cau)) tu va tinh hai dau tren".
• Adding a wildcard symbol may retrieve word variants: te ((sach ky) OR (sach ty)) nang xa hoi. hieu ((van dam) or (van cau)) tu va tinh hai dau tren*.