Perhaps you should try some spelling variations:
ve triet » va trien
su triet » su viet, su tien
hanh lai » hanh lam, hanh tai, thanh lap
sach ty » sach y, sach tu, sach thu
xa hanh » xa thanh, xa khanh, va hanh
co sach » bo sach, cuon sach, hoc sach
ve cach » ve cac, ve canh
nang ma » tang ma, sang ma, nang cao
ty nang » ky nang, ty xang, ty hang
va cach » va cac
tu xa » tu xay, tu va, te xa

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

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