Perhaps you should try some spelling variations:
hang thai » hoang thai, hang tai, hang hai
va triet » va thiet, va trien, ve triet
vu khach » vu khanh, vu khac, vay khach
thai va » thai van
va hang » van hang, va nang, va lang
cam tuc » cam tu, nam thuc, dam thuc
vu sach » vu bach, su sach
nang ma » tang ma, sang ma, nang cao
ty nang » ky nang, ty xang, ty hang
hieu va » lieu va, hieu qua
ma hoi » mai hoi, xa hoi, ma hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((vu sach) OR (vu khach)) ty nang ma hoi. hieu va ((cam tuc) or (cam xuc)) va hang thai va triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((vu sach) OR (vu khach)) ty nang ma hoi. hieu va ((cam tuc) OR (cam xuc)) va hang thai va triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((vu sach) OR (vu khach)) ty nang ma hoi. hieu va ((cam tuc) or (cam xuc)) va hang thai va triet*".