Perhaps you should try some spelling variations:
thanh lap » thanh san, phan lap, thanh hai
thanh hoa » thanh pho
su triet » su viet, su tien, ve triet
sach ty » sach tu, sach thu, xach tay
hieu va » lieu va, hieu qua
nang xa » nang x, lang xa, nang ma
cam tuc » cam xuc, cam tu, nam thuc
va cam » va cham, va cac, va cao
tuc va » thuc va, truc va, tuc xa

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

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