Perhaps you should try some spelling variations:
van tuan » van quan, van ban, anh tuan
te sach » toc sach
ve pham » vi pham, v pham, ve phan
lai cua » dai cua, hai cua, lai chau
vai cua » dai cua, hai cua, bai cua
duc van » duc va, duc tan, duc manh
hieu ve » hieu va, hieu van
sach ly » sach y, sach lo, sach ty
ly nang » ky nang, ly hang, ly vang
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 ve pham duc van tuan ((vai cua) OR (lai cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ly nang ((ma hoi) OR (ma hoa)). hieu ve pham duc van tuan ((vai cua) OR (lai cua)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ly nang ((ma hoi) or (ma hoa)). hieu ve pham duc van tuan ((vai cua) OR (lai cua)) tre".
• Adding a wildcard symbol may retrieve word variants: te sach ly nang ((ma hoi) or (ma hoa)). hieu ve pham duc van tuan ((vai cua) OR (lai cua)) tre*.