Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hanh lai » hanh lam, thanh lap, thanh loi
hanh tai » thanh tai, hang tai, han tai
vien cac » vien bach, vien dai, vien da
sach ly » sach y, sach lo, sach ty
nang ma » tang ma, sang ma, nang cao
ly nang » ky nang, ly hang, ly vang
su sach » so sach, vu sach
ve cac » va cac
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 ly nang ma hoa. hieu ((ve cac) OR (vien cac)) xuc xa ((hanh lai) or (hanh tai)) cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ly nang ma hoa. hieu ((ve cac) OR (vien cac)) xuc xa ((hanh lai) OR (hanh tai)) cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ly nang ma hoa. hieu ((ve cac) OR (vien cac)) xuc xa ((hanh lai) or (hanh tai)) cua triet".
• Adding a wildcard symbol may retrieve word variants: su sach ly nang ma hoa. hieu ((ve cac) OR (vien cac)) xuc xa ((hanh lai) or (hanh tai)) cua triet*.