Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
tuan dai » toan dai, tuan tai, quang dai
van tuan » van quan, van ban, anh tuan
cham duc » pham duc, cham soc, pham duy
vu cham » va cham, vu kham, tu cham
cua tre » cua te, cuu tre, dua tren
duc van » duc va, duc tan, duc manh
te sach » toc sach
sach ly » sach y, sach lo, sach ty
ly nang » ky nang, ly hang, ly vang
hieu vu » hieu va, hieu ve, hieu su
ma hoi » mai hoi, xa hoi, me hoi

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 ly nang ((ma hoi) or (ma hoa)). hieu vu cham duc van tuan dai ((cua tre) OR (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ly nang ((ma hoi) OR (ma hoa)). hieu vu cham duc van tuan dai ((cua tre) OR (cua triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ly nang ((ma hoi) or (ma hoa)). hieu vu cham duc van tuan dai ((cua tre) OR (cua triet))".
• Adding a wildcard symbol may retrieve word variants: te sach ly nang ((ma hoi) or (ma hoa)). hieu vu cham duc van tuan dai ((cua tre) OR (cua triet))*.