Perhaps you should try some spelling variations:
su triet » su viet, su tien, ve triet
hanh lai » hanh lam, hanh tai, thanh lap
xa hanh » xa thanh, xa khanh, va hanh
su sach » so sach, vu sach
tang ma » mang may, tang van
nang ma » sang ma, nang cao, mang may
va cam » va cham, va cao, va cai
xuc xa » tuc xa, buc xa

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

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