Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
van hang » van khang, van hoang, van thang
thai cua » than cua, tri cua, dai cua
te sach » toc sach
mai hoi » mai khoi, dai hoi, lai hoi
van cam » van nam, van lam, van cau
cam duc » cam xuc, cao duc, pham duc
duc van » duc va, duc tan, duc manh
y nang » ky nang, ly nang, v nang

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 y nang ((xa hoi) or (mai hoi)). hieu van cam duc van hang ((thai cua) OR (tai cuc)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang ((xa hoi) OR (mai hoi)). hieu van cam duc van hang ((thai cua) OR (tai cuc)) te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y nang ((xa hoi) or (mai hoi)). hieu van cam duc van hang ((thai cua) OR (tai cuc)) te".
• Adding a wildcard symbol may retrieve word variants: te sach y nang ((xa hoi) or (mai hoi)). hieu van cam duc van hang ((thai cua) OR (tai cuc)) te*.